Not necessarily, but maybe don't talk about your past. Your past is not always for everyone to hear. I think it can scare people away when they know too much. If you want to talk about it, maybe wait until you can really trust them with your feelings.
I honestly can't say I'm really hated. I've been hated on by complete strangers, but only because I was receiving attention maybe they wanted? I don't really hate anyone. I don't like people who are mean or hurtful for unnecessary reasons.