As an old woman myself, I’m sorry to you and your little cat too. Sounds like you got stuck with crappy old losers. I hope you meet other old people who treat you nicer.
I am angry a lot, but it’s because as a kid I thought the world was getting better, more tolerant and caring etc. and instead it keeps getting worse, more fascistic and hateful and filthy and destroyed. Every time we take a step forward we get smacked down backwards about six. It’s exhausting. But we do still have to keep trying to take those positive steps every day.
If your whole schtick is about decluttering, you should be able to differentiate between “less” and “fewer.” Getting things down to a countable number achieves “fewer”-ness.
Also, looking at walls of books sparks joy.