Hi GoldenRose, I feel that Switch made some good points. It doesn't seem to odd to me to have thoughts like that when you're 6 years old. Especially if you didn't like the people and were they rude to you? Were you jealous of them? It sounds normal though I don't know the whole story. In the 4th grade I fantasized about cutting off my classmates hair at the last day of school because he was kind of a jerk, lol. In terms of the made up "alternate universes." It does sound like you are highly imaginative. Perhaps you could channel it into a creative endeavor like writing or art! I like the idea of D&D too. I was the same way and still can be when I am isolated for a while. That's when it usually happens for me. I used to think I was crazy too. But honestly, I think it was because I didn't have enough social interaction. I am curious to know how old you are. When I was age 17-23, I was kind of obsessed with the idea that something was wrong with me. It was true that I did have depression and anxiety, and was facing a lot of pressure from my parents at the time. But I had worries like yours too about schizophrenia, psychopathy, etc. I tend to question myself. One time, a psychologist told me "People who are really crazy, they think they are sane. They don't even question." Any who, I hope this helped on some level for you.
ps: I think melancholy music is the best. Depressing things on tv or video, well, I think everyone has some kind of preference and tolerance (for or against) with that kind of stuff?