What can i do besides depression medication to get my motivation and happiness back?

A lot!: You can work with a good psychotherapist on your depression -- you'll learn more about any patterns which lead to more depression, and how to counteract them. The positive effects may outlast medication, and put you in the driver's seat. Also you can exercise regularly, get consistent sleep, and eat healthy, whole foods as much as possible. Connect with family & friends for healthy support.

Depression remedies: Include exercising, engaging in social interaction & engrossing activities, practicing gratitude, doing kind things for others, learning and practicing stress management, developing & committing to meaningful goals, avoiding negative thinking & negative comparisons with others, & talking to empathic & trusted people. If those aren't enough, talk to a mental health professional.

Exercise hard: Exercising hard boosts endorphin levels enormously, as does yoga. Endorphins are "happy hormones", and probably more than enough to get you up and going. Trouble is sometimes motivating to do this! for this antidepressants can, & do help. It is possible, go for it!

Depression: I agree with dr. Walker. Along with medications, life-style changes, psychotherapy does help.