How Do YOU Know?

I am a very goal oriented person. Tell me I can't do something and I go one step further... I will do it and I will do it better than I ever imagined I could and certainly better than you thought I could.

This year I am tackling Personal Training. I have one new client that a co-worker referred to me - this co-worker also personal trains and takes a bulk of the % for referral. What does that mean to me?? I get a measley $20 for working her referral - MY client. *ugh* It makes me absolutely crazy if I think about it for too long.
How do I measure my success?
How do I know if I've met my goal?