Maybe you could quit doing some of the nice things you do for other people, at least temporarily. Try to enlist their help. If they don’t help, maybe you could quit long term. Just take care of your personal area and let others live in their own crud.
I’m bitter too. As a wife and mother, I feel like servant. My attempt at a career was met with discrimination and meanness. It’s a cruel world out there I have found. I try to find satisfaction in taking care of my family. There is honor in serving I think. It’s really hard and impossible to change the world.
The bad stuff sticks with me too. Some of it happened over thirty years ago.