Good Enough... It's an evil goal

Who defines when something or someone is good enough? I worry all the time about this goal, am I a good enough mother, friend, daughter, photographer, writer, cleaner, cook etc etc. I look all around for proof, but instead of looking for proof that I am I seem to look and find proof that I'm not. It is so easy to find evidence and think the worst of myself that I have almost given up looking for the proof that I am good enough.

I wish life came with a manual sometimes. A nice book to figure out my mind would be bloody fantastic sometimes!