Linniya
Hard to tell what's wrong unless you reveal more information I suppose. Whatever you're comfortable with revealing.
Perhaps you're oblivious about little things that may annoy others enough to hate you.
It could be a personal enemy of yours who affect things behind the scenes to ruin your reputation.
Maybe you act too much of something that people get annoyed.
Could be that you stick out from the rest in a way that makes people label you as different and hate you just because of that.
I suppose any of those are possible.. and information I can really give is that I'm a normal person, I don't over react much, I always try to be helpful and nice.. but it just seems to always back fire on me.. maybe I should stop trying to help people..? (I don't over do it either I ask if they want help and if they say no then I make sure they are positive then I try to change the subject..)
And almost everyone I know in person do try to ruin my reputation for some reason, even when I've never done anything wrong.