What are cheering dreams about?

I had a really in depth, horrifying nightmare last night, probably from pneumonia kicking my ass and taking a plethora of meds,
so~
I'm gonna tell y'all all about it.
*Content warning, triggers and everything else disturbing.*
So, Earth was post apocalyptic, after Trump started WWIII, let's just start there.
Houses were gone, presumably burnt down in riots.
The small remaining population was made up of several hundred slews of people, kind of like in the movie "The Road"(look it up, and if you can't handle realistic cannibalism, don't watch it).
The herd of people I had joined, some co-workers of mine, a few neighbors, (thankfully my child wasn't existent) was meandering the streets, in search of refuge, maybe 10 of us? We happened upon a group who was seemingly harmless, but had an obvious leader, whose intentions were uncertain to me. They had found an old bunker and were creating their campsites within it. (Families, co-workers, children)
Here's where it gets FUCKED UP.
The leader, white man in his early thirties, let's call him John, let us know all of the young women needed to be initiated, because women were of lesser value. APPARENTLY that meant we were all supposed to engage with John sexually in competition with another woman (from our own home group) and one of us had to die to show one's dedication to survival. (Fucked, right?) Even more fucked up, all of it had to be witnessed by everyone in a stage-like set up, like the goddamn ancient Coliseum. We were allowed to bring weapons, and we could decide who we had to pit against one another. Obviously I was one of them, it's MY nightmare after all. Our weapons of choice were wooden spatulas and spoons, don't fucking ask me why, I'm just as confused as you at this point. I won't name my opponent, but she's someone I know in real life (yikes). We start the fight, an hour late, taking turns trying murder the other. While engaging in coitus with John. Ew, I know, right? Then, THEN, my sister COMES OUT OF NOWHERE with a long piece of twine, hands me one end of it, John stands up. My sister and I then RING THIS DUDE'S NECK with it. Until he strangles to DEATH. Everyone is silent, there's an audience of like 200 people so it's already really weird. Everyone cheers that John is dead. Me and the other girl are naked and crying, cause why the fuck not? And it cuts to me in a café where I'm waiting for a job interview after the new world order starts to civilize. My mom is with me.
She wishes me good luck, I walk to a large office with an opaque glass door, AND OUT WALKS JOHN TO INTERVIEW ME. At this point I forced myself awake cause I was just suffering lmao. The end.

This was the most horrible and realistic dream I’ve had in my life.

To begin with, I can easily manipulate people and I’m also a really good liar. I don’t use these skills to hurt others but I can spot anyone trying to be manipulative or lie.

What I want to say is that I’ve never met anyone in my life who is better at this than me.

But this dream was horrifying. I was playing cards with the devil sitting by the tree. I couldn’t recognize any of the cards and the game, itself. The devil was a she. Blue one, with wings and a creepy smile. She had a gotie (beard) and magnificent hair.

We decided to play till any of us wins 3 times.

She won the first time. The weird thing is that she was manipulating me so easily that I couldn’t do anything. That level of manipulation was not real.

She was playing my hands and despite doing this, I still had the hope that I might win this.

I never showed her my cards but she knew exactly where Each of them were. When she was waiting me to answer her play, she was taking the ‘correct’ card from my hand without even looking.

Then, she gave me a creepy smile. It felt like she was looking right through me.

When she won the first round, my eyesight got blurry. Like, I couldn’t function properly. I felt sleepy.

We were also talking about life and it’s meaning. I was trying to seem smart and interesting but she was the one stealing the show.

I can’t remember what we talked about but it left a deep feeling in me.

When the second round began, she was letting me win so that I don’t chicken out and leave the game. Without a doubt, she won the second one.

By the time the third round was about to start, my eyesight was almost gone. I could barely see and think. It felt like I was under drugs.

When I got my cards, it was the best hand possible. I was sure I was gonna win.

Then, I saw the evil smile of hers. I was trying to say words, ‘I can no longer play, I can’t see anymore. You’re not playing fair’.

She was insisting I should continue but didn’t touch my cards. She looked desperate. I managed to put my cards down and tried to stand up and fell from the chair and went into the oblivion.

I woke up suddenly and felt like I was suffocating. I had the worst feeling of helplessness. I then tried to calm down and listened to ‘Harold Budd - Madrigals of the Rose Angel’.

My first impression of this music was heavenly (before this dream). A different, magical world existing somewhere out of my reach, but knowing it’s truly there.

But now, it sounded like the pure definition of hell. The death of all life. Leaves falling down the tress, the sun dying and people disappearing. I was shivering in my bed and felt worthless.

Then I remembered my girlfriend was the one who sent me this song and it hit me that she’s the devil.

My whole relationship with her ran through my eyes and I was becoming more and more scared of her since I was realizing how she’s been manipulating me.

I almost cried. Psychologically, I’m a very strong person and it’s unusual for me to be like this.

I have a feeling that if I lost the third round, I’d be dead right now. I’ve never felt this close to death.

I’ve been in a horrible accident, and barely survived. I was bit by dog in my neck which I also barely survived but this dream was more intense. I’ve never been this helpless.

I wanted to scream but I held myself. I now woke up, feeling a bit better. I’m trying to process all of this. I want to believe that it’s my way of thinking and my girlfriend is not actually the devil.

She hasn’t really done anything to me. She’s just constantly sad and needs cheering up.

But the devil’s smile. I can see it even now. Looks like her’s.

So I had a dream(at least I think I did) where a friend and I were playing yugioh in a class room(I think it was class room) but the monsters were real, she summoned Stardust dragon and I summoned flame wingman. The yugioh 5ds theme(japanese) was playing in the back and everyone was cheering for her but my best friend(Her boyfriend) was cheering for me. Flame wingman and Stardust dragon charged at each other but I never saw who won.

In high school, one of my classmates that I used to be close with in elementary school lost his life to suicide. Supposedly he had depression and he blew his head off with a shot gun.

Now, let’s get to the dream.

The whole school was in the school theater watching a play that he was starring in (In reality, he really did love the theater.) and he was being his usual goofy self by going off script and saying funny things and running around like crazy. There was a thin paper backdrop that he ran straight through and then ran through again but from the other side of the backdrop, again breaking the paper. On his last run through the paper backdrop and back onto stage, he yelled to the audience “I am Vladimir Lennin!”

The audience applauded and I went backstage to personally tell him how much I enjoyed his performance. He smiled and thanked me while quickly breaking to thank others.

My small friend group and I now begin to walk back to class while talking about to play. I ask them “isn’t it weird that he was in the play? He’s supposed to be dead. Does he know that?” one of my friends replied back and said “I know, but don’t tell him.” I was disgusted by that answer and I knew I had to tell him. I replied with “No, he needs to know he’s going to die. He only has 5 months until it’s supposed to happen.” after saying this, my other 3 friends expressed their concern, all agreeing that he shouldn’t be told that he’s dead.

I even pulled aside random classmates to ask them if they know he’s back from the dead. They all knew. My suicidal friend was the only one who didn’t know.

What are your thoughts on this dream? Thank you for the read.

So basically it was like a village and this lion and lioness where standing and there was a huge crowd of people cheering me on and the village witchcraft matron telling me to not have fear.

I went ahead and garlanded only the lioness. And then sorta rushed back to my post.

I'm 17F for reference. I have no idea what this could mean.