What are pool dreams about?

I just work up from a nap and had a very distressing dream in which I must have been at a holiday house or somewhere similar. I was in a room with just the guy I knew from high school, let’s call him James. Everyone else had already gotten changed and was at the pool. I mentioned that I would likeJames to leave the room so I could get changed and it took a lot of stern words and a strong voice to get him to leave. Eventually I start changing into my swimmers and I can see James has opened the door a crack and is watching me through it. I started yelling at him to close the door and I was hiding behind the bed as I wasn’t dressed on my bottom half but he refused and continued to stare at me with this evil smirk on his face at which point in time I woke up. I immediately began crying when I woke up and I’m just wondering is anyone has any insight into why I felt this kind of strong and sudden emotion.

It was a really long dream, but I've written everything I remember about it in a notepad.

The world went through a metamorphosis or some sort? As if it was judgement day or something. Everyone was being pulled to the sky and their shoes fell off. A clumsy but intelligent man did something and put a stop to it, but he gave his life in the process.

A woman who loved him, was a very serious woman. Devastated by what had happened, and knowing no one will help her bring him back, she got to work in her laboratory. Her laboratory had many incomplete dolls everywhere.

She began to "give birth" to body parts. Literally. They weren't huge or anything, they were small like the parts of a baby doll. Numerous hands, legs and torsos were made, I think there was a head? She was trying to make her lover from scratch. But regardless before she finished giving birth, an asteroid crashed into her facility.

Out of which came a man and a woman, presumably a new Adam and eve, and they were happy to be on earth, planning to conquer it. They didn't notice the woman crept behind them and killed them.

I had a dream where I was in my primary school’s pool. It was full and everything. There was a man standing just behind the pool and laughing. My classmates were in the pool too but they were sort of zombies? They were trying to kill me. The man just behind the pool was holding a sort of gun which looked like one of those cameras cops catch your speed on. I was running around the pool, screaming and crying closely followed by my zombieish classmates who were trying to kill me. The man pulled the trigger of the gun thing and it felt so painful. It felt like my back was spasming. Then I was back in the pool and it happened again. This happened multiple times. This was all in the same dream too. It hurt so bad. Anyone have any ideas why I dreamt that?

I was in this big pool underwater and I couldn’t get to the top, my dad was just at the surface watching me, and i could see him yelling at me, and i kept getting pulled down deeper, but sometimes my arms made it out the water, but everyone in the pool area was just watching me and yelling at me to sink deeper, so i let go and sank to the bottom, but the water ended and i fell through it like, looking up it was the bottom of the pool water and i was then falling through air. I landed in a pile of beetles that all had faces of people and they were trying to bite me, but i started squishing them and everytime I did I grew a little bit taller and eventually i was so big that i like filled out this box and i was then laying in a box with no exit, and i started kicking the walls hoping they would break but it was obsidian so it was too strong. Then i woke up

So the dream started as me waking up in my bed, I couldn't talk, I couldn't think, I couldn't scream, and I couldn't cry, but all I knew was I was scared. It wasn't just any old kind of scared though, it was the one where you knew you had fucked up and hurt the people you hold the closest, the kind of scared that you'd expect to feel right before you hit the ground from jumping off a fatal height. I realized I could move though, so I got up and started stumbling down my stairs, shaking from fear. The kind of fear to start at the pit of your stomach to consume your whole body until it really settles in what the situation is, but the thing is I don't know what the situation is. I make it downstairs and see my dad sitting on the couch of my living room looking devastated, disappointed, and depressed, or as I will to call the dangerous D's as the occur quite frequently throughout this. He looks at me with a look of the dangerous D's and grief and shakes his head. He tells me to sit down next to him because we need to have a talk and that fear from earlier gets more intense as a feeling of guilt and sadness joins in with them. he starts asking me questions with his head in his palms but get's no response as I try every bit of my power to get a single sound out but to no avail, and he looks up at me again tears streaking his face as he tells me to stand up and shows me the door. I open it to see an empty void, almost as if the world had been swallowed whole leaving my house, and the feelings consume me and I jump. I keep falling and falling until something pulls me aside and I am on this farm like land on a pasture. There is a house and a barn in the distance and the sunlight is bouncing off the blades of shiny green grass swaying in the wind. I look at my surroundings and see an old man in a dark cloak, almost looking like the grim reaper, as he whispers in my ear that he knows what I'm going through right now and that he can help me escape this but I don't trust him and jump off into the void again as he gives me a sad look and shakes his head. My fear keeps growing larger and larger as it keeps ungulfing me in these awful emotions and I start feeling the dangerous D's start to come along. I get pulled one last time and this time I am in a broken down version of my house with my parents giving me the look of the dangerous D's and shake their heads and walks off. After they walk off I see my little sisters, the two girls I had sworn my life to protect, lying there, dead. There skin is pale while they are lying in a pool of blood with there wrists sliced and there throats cut, giving me a blank stare with their jaws unhinged and their faces stuck with a look of an overwhelming look of the dangerous D's along with the saddest, most heartwrenching, most overwhelming look of pure grief. I look in disbelief, every feeling I was feeling before multiplied times one million. My two baby sisters, laying there, dead. I can't take it. Their heads suddenly perk up and they smile with blood gushing out of their mouths. They say that this is all my fault, I made them do this, I went down the path I did and died and made them do this to themselves and my parents come back and stand behind them with the same looks they had before and I look in the distance and see the old man giving me that same look of sadness with an "I tried to warn you" king of look on his face and he turns around. I can't take anything anymore, I can't cry, I can't scream, I can't talk, I can't think, I can just feel these feelings make me do things. The feelings keep getting worse and worse and the fear finally settles in on what the situation is and the fear keeps getting worse from this realization. I am in my own personal hell, being tormented, so I turn around and jump into the void one more time hoping I can escape this hell. I keep falling and falling until I see a bottom, and I know it's finally over so I take a sigh of relief and hit the bottom

I'd make a TL;DR but I don't know how I'd do that with this story. please tell me what this is about. It's the most disturbing dream I have ever had.