I'm really depressed. want to know what do i need to do to overcome it?

There are many: Things you can do for depression. Don't isolate. Spend time w people. Use your support system. Get out. Don’t stagnate at home. Work to get 8 hours or > of sleep per night ; eat healthfully. Daily aerobic physical activity is a big +. Recommend the “feeling good book' by dr. David burns. Your dr can assess for mood disorder ; underlying medical conditions that may be causing symptoms.