Hello K2TOG: Yes, a tune-up with your counselor sounds good!

The Skeezyks is sorry you are having so much difficulty feeling yourself to be of value. I have this problem as well.

And I also beat myself up relentlessly whenever anything goes wrong.

The past few days seem to have been particularly difficult for me in that regard. I don't know why.
I'm glad you have been able to quit your job & still be financially okay. The one caution I would have here would be that staying at home alone can get to be a habit. (It's one I have.)

The good thing in my case is I'm old enough that it no longer matters.

For a younger person, however, it can become a trap.