The anxiety not to be accepted

For 7 years I had to stand bullying at school and harassment for month at work. I think that happened because I was too unsure because of everything I had to go through in my childhood.
Since the bullying I have been lacking in self- confidence much more then before up to now.
I´m too anxious not too be accepted of the people. And there are more or less people who don´t accept me really: because of my anxiety. Is there anyone who knows that feeling or anyone who can give me some helpful tipps?

Colour-
For what it's worth, I think people are more accepting when they're educated (about anxiety). I have a friend who has pretty severe social anxiety. She frustrates the hell out of me sometimes with her actions but I know why she does what she does and that helps me to understand her. We have mutual friends who don't know that she has social anxiety. They just see her as flaky, inconsistent, unreliable, etc. They don't know the reason behind her backing out of plans or not calling back, etc. If someone is truly your friend they will understand you and what's going on. HOWEVER, it's up to you to disclose your feelings/anxiety. If you can't then you can't, but it would just make it easier for people to understand.
Does that make sense?
-Clueless

My belief is is that ppl who dont have this condition can NEVER truly understand it nor the ppl who suffer from it.

hi. i know something about it not being accepted. My parents don't want to know much about it, they think its nothing really, just a bit of cowardice. I suggested that it ran in the family, because my older brother has sort of the same problem, but he lived with it, and nowadays he's ok in some situations but can really be a nervous, agitated, hyped up person in others. when i went to the nurse to tell her what i thought i had, my mum was in the room, and the nurse didnt call it a mental illness, she called it a distress. is it true that it is not an illness? ive heard that no one knows whether it is genetic or even chemical imbalance in the brain. anyone have any ideas? but i guess either way, it's never going to be understood by those who don't have it. in fact, im quite sure they laugh at me.