What can i do to overcome my depression without taking any medicine?

Several Things: Psychotherapy is very helpful. Other things like exercise, healthy diet, and even light have been shown to be helpful.

Work with a : Therapist. Depression can be overcome with therapy, but we know that the best treatment is a combination of meds and therapy. I personally always want the best!

Therapy/self-care: Therapy will help -- ask your primary care doctor or call your insurance about a mental health provider. Things that you can do on your own -- try to establish routines, sleep hygiene, small achievable goals, look for positive aspects of the environment -- do a summary at the end of the day -- best thing that happened, the things i laughed at, etc. To bring you a sense of joy.