The whole secret of existence is to have no fear. Never fear what will become of you, depend on no one. Only the moment you reject all help are you freed.
To keep it simple you run your gym like you run your house. Keep it clean and in good running order. No jerks allowed, members pay on time and if they give you any crap, throw them out. There's peace where there's order.
I got amazing training both with Theatre Sports... Back in Edmonton, Alberta - I can't give those people enough credit - and the daytime drama I did. Incredible training, both of them.