I get the impression that you throw the term "hate" around rather loosely. You sound very young and not very experienced in life. It's not true that you went to a school where "everybody hated" you. There are mean people and also nice people in every school. To think that you were the one and only nice kid surrounded by a whole school full of mean haters is not believable. That's you smearing a bunch of people you never got to know.

Some young people do have a hard time fitting in and making friends. I sure did. It is very painful when you're young to feel like an outsider. In every school I believe there always are some students who really don't manage to make friends. For those young people school can be a miserable experience. There should be more help for isolated students, IMHO. But it's kind of simple minded to think that, if you had difficulty, it was because everybody wanted you to be excluded. That's not very realistic. It's not fair.

You do have a trait that many depressed people have. You tell yourself discouraging things that are not necessarily true. That's a good way to end up depressed sooner or later.

I think some time with a counselor might benefit you. If you explain your view of life out loud to someone attentive, you might start to notice "something is wrong" with how you interpret reality to cast yourself as always the victim. Maybe, in your family growing up, there was no one to bounce ideas off of. So some poorly formed notions might have entered your thinking and never got challenged. I think you need someone sensible to talk to about the painfulness of your home and school experiences. I think that pain has warped your view of life. But you are young, I believe. That means you can still re-orient your thinking to be less negative, which I think could give you a much better life.