Well, that happened to me many years ago and sometimes, it does happen from time to time but over the years, I got it more channeled down.
Let me throw in the quote the kicked my passion back:
Boy, did that resonate to me big time! It's not like I'm an Andy Warhol fan and my artwork still needs a lot of work but fuck it, get it done.
Getting things done with what you have right now is better than getting things perfect. Get advices, feedbacks here and there but ultimately, focus on you. Use the ones that are helpful to you and leave out the ones that don't matter much to you. Be thankful and kick ass!!!
If you say about your art, "man, it sucks!!" So what if it sucks create another one and move on. Work on it everyday. Whether it's good or it sucks, it doesn't matter... Move forward. You will eventually improve without you noticing.
Those are the mindset that I have right now.