Hey shezbut, I've got a couple of things to say to you:

1. People like you and me will never fathom bullies. I could only conclude for myself that they're simply wretched, insecure losers who have nothing better to do than to be mean. I try to ignore them as much as I can. Sad lives.

2. I'd like to make a reference: if you're "not used to positive feedback", you are likely to "freak out" like Megamind at the end of the film when people cheer up on him. Funny as the idea is, a lot of people can relate to it. We might have a concrete mindset that we don't deserve the compliment, but I think that if we know people are being sincere, it might be better to think a bit differently and accept it as a gift of kindness. It doesn't mean we're unaware of ourselves or whatever, but it would help us feel better about ourselves and brush up our self-esteem a little bit. Wouldn't hurt at all.

3. As far as I'm concerned, issues regarding looks are not that hard to fix, as small changes make huge differences. So improving on body language, style or a lot of other things could be very effective for boosting confidence. What we really need is positive energy.

4. Again, if our minds are set to believe it's done for, it's dead-end, it's not getting better, chances are we won't find our ways to positive changes. Age is irrelevant, it's never too late. That's what I believe and keep telling those close to me. So if you have never grown inner confidence, do now!