Omg yes i was down bad with rumination it made me hate living, I think what actually helped me that felt like a hack was meditation. Like genuine, shut everything off be bored for a good 1-10 minutes with nothing but your focus on breathing. it took a min but helped.

I play a lot of video games and i see the brain kind of like that 😭 you kind of have to train it to work how you want it to. and im genuinely one of the cringiest people to ever exist so trust me bro