I used to feel like this, but somewhere along the line I realised a few things. If someone doesn't like me for me, I'm not sure I actually like them. There isn't a 'right' way to be so people like you. May as well be yourself and see if YOU like THEM. And if you're not being authentic, well, people will sense that anyway.

I'm sorry you feel that the person you are is somehow unacceptable to others. I wonder if you are giving other people more of a free pass while being really harsh on yourself? Could you stop and think about WHY you don't expect to be liked, and if you're being really unfair to yourself?