How to treat myself besides spending money?

I'm trying hard to save but I feel miserable in my life and food/buying stuff gives me some happiness. I tried other things (exercise, journaling, self-care, etc...) but it doesn't help.

What are other things you do to treat yourself? What else do you do to make yourself feel better besides shopping/spending money? I'm looking for no or low cost ideas.

Thank you to everyone in advance!