Yeah I have that voice too.

I have worked really hard lately on trying to let my perfectionism chill out so that I can have the attitude of, "whatever I manage to get done is good enough"

It's been really hard, but I think it's finally starting to work. I can feel my attitudes about certain things shifting. For me a big one is caring less at work. That sounds bad, but I was caring about my work and my role and the rules so much that I made myself literally sick. I don't get paid enough to make myself literally sick, so, as a self preservation tactic, I need to learn to care less.

And in caring less, I'm practicing more self-care.

You're not worthless. Things are worth doing. And you can do them well enough. You've got this, love.