If you are not able to answer some questions to ask below then probably you have a low self confidence to yourself. You don't have a strength to do for those things that you may encounter in Life ,you show to them that you are a weak person.
1.Do you have encounter insecurity to other people ?
2.Are you happy for what other people success or achievements?
3.Do you feel loved to yourself?
4.Do you still consider or accept valid criticism?
5.Are you scared to accept the challenge in life?
6.Are you shy when facing other people?
7.Do you see yourself as a successful person?
8.Do you hurt when somebody told you a loser man or woman?
Try to answer this questions to yourself if you're affected to reflected to yourself .Then , help yourself to improve it in order to become a better person and get more self confidence and also positivity in life.
Be with your Friends
Recall/ Going Back from your mistakes.
Give of yourself
We do have a lot of choices in life, and options to do what we want to do. But let us all remember that our life needs atleast confindence in every step of the way. In that way we can show to the world and to others that we are confidently enought to manage our lives no matter what will happen. This is one way of making sure that we are hitting one aspect of our lives with confident and never be afraid to take a risk to all our struggles and difficulties in life.