Many people suffer from depression or anxiety. Sometimes both.
Two ways to address these issues are physical exercise & mental practices.
By physical exercise I mean good old fashioned walking, running, swimming, tennis, volleyball, etc. Whatever you like to do is best.
By mental practices I mean things that focus your mind on creative, enjoyable or positive things. This could be anything from art to cooking if you love them. To be really sure that you’re focusing on positive things, it can be doubly helpful to engage in things that are designed to be theraputic, because they will have this bias built in. Art therapy, dance therapy, psychotherapy (depending on the therapist), etc.
Interestingly, meditation also helps for the mental focus aspect, because it has the natural outcome of letting your mind rest.
Why are these 2 things important? Because they change the chemical habits that you’ve gotten into. They offer natural a natural way for your mind & body to reset to happy versus sad.