"You really wouldn't worry so much about what other people think about you if you remembered how seldom they think about you."
Worrying about whether someone likes, understands, admires, fears or trusts you is a waste of energy. First, you can't control what others think. Second, they are probably thinking about their own issues much more than they are thinking about yours. When we realize the World does not revolve around us, we relax. When we relax, we are less likely to need to escape by picking up our first drug of choice. We become happier by what the "12 by 12 Book" describes as the art of "self forgetting." Another coupon of self forgetting is that it actually helps us to do trustworthy actions.
Focus on doing the next right thing. The next right thing is being honest, pure, unselfish and loving. That is the only way to regain trust. Think less about you and more about helping them.