For me, self care is:

A trip to IKEA

Reading

Putting phone on silent

Playing classical music

Eating IKEA meatballs

Long, hot shower

Getting a shave at the barber shop

Spending time with favourite person

Uber eats from a proper restaurant (not fast food)

Knitting/crocheting

Fixing something that's broken (mechanical, not electrical)

Going for a gentle walk an hour before sunset when it's less hot outside