At what level do you want to play? What is your self concept? What you believe is what translates in reality.
If you want to play at the top level, but part of you believes otherwise, it will manifest in your behavior.
Once you create a new belief and reinforce it in every which way you can, you start to breathe new life into your purpose.
No one else can do this work for you. This can be both, good and bad. The good part is that you are in charge of this. The bad part is that you cannot rely on others or pass the buck.