I'm really depressed. how can i make myself happier?

Your Dr can assess: for mood disorder & causative underlying medical conditions. Talking therapy (Cognitive Behavioral Therapy or insight oriented psychotherapy) is allows for lasting change. Psychiatric meds may be indicated. Don't isolate. Spend time w people. Use your support system. Get out. Get at least 8 hrs of sleep/ night & eat healthfully. Daily aerobic physical activity is a big +. Try acupuncture, tai chi

DEPRESSION: Get an evaluation from a psychiatrist to help identify what depression means to you and whatever else may be bothering you. Consider recommendations for medication if any are given. Get a referral for a reputable psychotherapist to speak with. Meds and therapy combined are most optimal; no just one or the other.