Learning to view life from different perspectives is helpful too. Sometimes I can relieve my depressive attitude by a shift in my approach or by just looking at the situation from a different angle.
Today I am depressed. There are things I can do to relieve my sadness and lethargy. Mostly they relate to being active and getting up and taking action, but there are ways to look at this that would lessen the deepening of my angst. I could look for new adventures on my calendar, or maybe I should just recognize that new things will happen and they may be fun.
Oh, by the way, fun is one very good antidote for depression. I'm not sure what theory that goes with, but it's always worth a try.
Accomplishment is a good way to fight depression. Physical activity fights depression because it stimulates the production of neurotransmitters in the nervous system. The effort and energy required for accomplishment has a similar effect. Hard work and difficult mental challenges are rewarding in the activity, but success is a real high. Tackle difficult math problems or learn a new language to insulate yourself against depression.
So I am depressed. So I write about how not to be depressed. Sounds like a good plan. And occasionally in all that effort and mental stimulation, I do something worthwhile. Go for it!!!