Oftentimes failure is the key to success.

No matter who you are or what it is you do, you're going to fail. Yeah. I know. There's not much motivational about that little gem, eh? But if you squint your eyes and look at that from a different angle, then actually there is. 

Every author I know, every artist I know, shoot…every human I know that ultimately achieves success is because of what they've learned from their failures. Eventually, if you're persistent, all those learning experiences will drive you to success.

So hang in there. Whatever dream you're trying to achieve, don't let failure be an end to your means but a means to your end.