If you want to make money and live well, get out of your head and into the game, it's all in an attitude adjustment... and getting out of your own way.
The issue with detaching is... the feelings. Feelings are a funny but wicked thing. With these feelings, we build... expectations of supposed outcomes.
Finding your way back to yourself can be tricky, but if you allow yourself to feel, to work through the blockades you have created as coping mechanisms, you will get there.