Confidence is not 'they will like me.' Confidence is 'I'll be fine if they don't.'
The most beautiful thing you can wear is confidence.
Confidence is like a muscle. The more you use it, the stronger it gets.
Confidence is preparation. Everything else is beyond your control.
With confidence, you have won before you have started.

The best way to gain self-confidence is to do what you are afraid to do.

Self-confidence is the first requisite to great undertakings.
Confidence comes not from always being right but from not fearing to be wrong.

I am who I am, and I'm focused on making the best of that.
Trust yourself. You know more than you think you do.
Confidence is contagious. So is lack of confidence.