I keep having nightmares

One of them was about a flood, it started with me and my partner laying down in bed before me getting yelled at by my parents. Then the flood happened. What I can remember, I was hearing to a rusty boat holding my partners hand tightly, it even had a rope holding us. In the boat there was my family and a very disturbing mermaid. They kept telling us that he couldn't be there (My partner) but need up leaving us two together alone in the boat with poor resources.

Now this other dream, was about me attempting to off myself on December 20th, yes I somehow remember the date. My whole family was gathered together, there was gifts, a christmas tree, everything looked cozy, for them. Everything was cold and there was black stains on corners that only I could see. In the night, I attempted to overdose, but got stuck in a dark room.

Lastly this other nightmare, included my partner again, but I was cooking with him. I see lots of flies in one of the plates, we were making empanadas, so I ask him to open it, and there was a rotting human head. Looking directly at me, it was a woman, green eyes, blonde hair. My partner was horrified and kept asking "You killed her?! What did you do?! Why?!" Etc, etc.

If someone can help me interpret them, I wanna see what could they mean. (Sorry if I spelled something wrong, English ain't my first language.)