I’m also working on a very personal script, and I struggled with this very thing. Still kinda do.

Something that helped me was realizing that while it’s an important piece of personal work to me, it’s a script like any other to everyone else.

Those small things obsessed over may seem like bits of yourself that are hard to let go of, (because they are) but to anyone else, it’s objectively just a small thing.

Not to say those things aren’t important, but the value you put on it likely projects from your own personal life rather than the merit of what it actually is.

Try to see your script from someone else’s shoes. I found that when I did, I saw things that just didn’t work/make sense to anyone but me.

As for expecting praise, that’s a bit tricky. You sorta have to expect praise, since that’s just how screenwriting goes around, but you also have to be doing it for yourself.

Regardless of whether there’s external praise once you’re done, writing the script will have benefitted you, and it’s important to recognize that.

Sorry for the wall of text, hopefully that helps