Hiya Zube-
Trust.
It's hard to regain. I know from experience
I was fired from my career job 3 years ago. I wish I was still there and they could test me for the rest of my life.
This isn't to say I didn't deserve it or that you even deserve to be tested, but just to show some perspective.
Keep up the GREAT work on your self and it'll fall into place.
Kjell~