Just really really believe in what you're trying to do. Don't let people alter that. Let people advise you and lead you down paths to make smart business decisions. But trust your instinct and trust that overwhelming drive that made you put all your dreams and everything on the line.
Most of my actor friends don't believe it's possible to let go of it and be happy and for a while that was true for me. For the first two years I ached every day. And I had such bad dreams. But then I made the decision to start working on my little shop and all that went away.