Hey! Welcome to the forum. I can relate to your post and therefore I'd like to recommend two threads that have helped me greatly.
The two threads are:
the-centered-man-manifesto-defining-you ... 34859.html
The Centered Man Manifesto by The_Mack
and
frame-control-defining-reality-and-bein ... 34530.html
Frame Control, Defining Reality and Being High Value by Stormy
both these are threads on inner game, confidence and how to be the best you can be. MUST READS IMO!
I also recommend reading Chiefs Guide to Outer Game, in the PUA Lounge section.