If you are battling serious depression, you probably need to see a therapist,and perhaps a nutritionist, and maybe get on meds.
However, we all go into a mild depression from time to time and here are some ways that I have found to help me work my way out of it.
Get to a place that has natural light. Spend lots of time outside.
Exercise, walk the dog, go to the gym, even if you don't feel like it.
Throw stuff away- de-clutter a bit.
Get into another reality- a good book, a movie, etc.
Talk to people when you are out doing errands.
Write down your plan for the day, or week, or year,- figure out what your goals are.
Plan a trip.
Take on a home improvement project.
Join a book group or take a class.
Volunteer to help someone else.
Do some kind of artwork.
Cry, laugh, breathe.
Treat yourself to a favorite food or shop for something for yourself.
Meditate, particularly using the clean-out techniques at the beginning of each meditation. Then open to new energy to guide you forward.
Keep doing all of the above.
Good luck and I am sure you have additional techniques of your own- we don't want to be there! So, til next time- Lia