The best way to gain self-confidence is to do what you are afraid to do.
Your time is way too valuable to be wasting on people that can't accept who you are.

With confidence, you have won before you have started.
Confidence is not 'They will like me.' Confidence is 'I'll be fine if they don't.'
Confidence is contagious. So is lack of confidence.

The only limit to our realization of tomorrow will be our doubts of today.
The most beautiful thing you can wear is confidence.

Confidence comes not from always being right but from not fearing to be wrong.
Confidence is preparation. Everything else is beyond your control.