Have you ever said something like, 'If I don't get promoted this year, I'll feel justified in quitting this job', or 'If my partner cheats on me again, I'll feel justified in ending this relationship'? If so, you're guilty of waiting for permission: waiting for something to happen so that you'll feel justified to do the thing you want to do anyway. It's a way of wasting your own time, holding yourself back, standing in your own way. You don't need permission. The fact that you want to do the thing is all the justification you need. Join your old imperfect friend for a look at what's going on with us when we wait for permission, and how we can move past it. 

Here's Mel Robbins' TED Talk, How To Stop Screwing Yourself Over.