I think every movie is lousy at first and at points during the process. It does help to have pro feedback.

But the key is as they say - the story is itself, not a deadline.

Especially when you have to work on more than one project at a time at some level.

I find that when I am not feeling the next lines or whatever, I will switch scripts and come back. But I'm one of those people who doesn't believe in the "shitty first draft."
I won't go forward until it sings rhythmically.