That can happen. I'm preparing a workshop for cultivating creativity, and finishing the project(s). Partly for people with the second guess problem, partly for those who can't find the time and inspiration lining up, as well as several other angles.

And one thing for the second guessers is just put it out- there will be more opportunities to make the next one even better. Another strategy is to produce as much as possible in a given time, the choose a number of them to be the best you've made and release/show them.

May you complete all your works!