Look at any famous director. They all made shit before they made something good. Every good writer has written thousands of terrible lines before they get to one line. Consistent persistence is the most important factor for success. That’s why you have to write everyday. To get through all your bad writing. So then you can find that one little piece of writing that is decent. And then decent turns to good. And good turns to great. And great turns to success. However you define it. So write. Continue writing. Stop thinking. Just write.