It's all about learning to be comfortable in your own skin. Push yourself and know that there's always tomorrow. I know you can do it.
I began publishing short pieces early in my career, and that was an important confidence-builder. Publishing a novel, though, felt like it took forever (because it basically did). Like many writers, I did not understand that you can’t sit down and pop out a publishable novel in a couple of drafts. The Hollywood version of novel-writing was playing in my head, and I couldn't figure out why real life refused to cooperate.
You have plans but nothing seems to work out the way you planned it in your head. It’s not only frustrating but it’s frikken infuriating.