Play a clone of Tetris
Tetris has suggested efficacy in attenuating development or severity of trauma and it seems to have a beneficial ongoing cognitive effect also.
Don’t get Tetris™️, get a good paid version that lets you buy it and doesn’t show ads or track you after buying.
I like JustWatch because it lets you search all your streaming services at once. If you set up a (free) account, you can limit it to just the streaming services you have personally. Handy as hell.