Deferred Art Syndrome
I've sometimes called this perfectionism. It's similar. I don't have enough time now, I often think, to make this piece good enough.
I don't have a problem with doing that at times. I don't regret spending lots of time on meaningful projects and being uncompromising to my vision. The problem is when I push off every single project so that I don't make anything for months.
Of course, I can't make everything right now. But I don't want to allow myself to make nothing.
Such is the struggle of practicing creativity.