Complaining is not the solution to any problem, You must come forward and act.
No matter in which situation you are , to come of that you have to have confidence in yourself . You can cry in front of friends, god but nobody will help you , until you do not believe in yourself .
Confidence , faith in your self leads you to your goal . Suppose you are not good at something like orating skills . For that you have to believe that you can. what it demands is hard work with dedication and everything is yours.
So be confident you may not know something but you can Learn.