Hear music and meditation in regular basis. Keep busy yourself  in daily life  like gym Walk . And talk to your friends etc even you can make a trip

Running every day at minimum speed around 10 minutes. Don't sleep in the afternoon. Sleep well at night. U will be having normal happy life within a week

Focus on your breathing daily. During inhalation ur belly should come out and during exhalation tummy should go in. Practice this twice a day and during that moment when u think too much...breath in n out from nose and close d eyes. At a time practice 5 to 10 times. There is only one thing in life i.e. present.. no past no future... when ur day starts, make small goals n try to complete those at the end of day but your goals should b small like watering plants, nurturing them; talk with them observe them, like this choose small small activities which u like and can do so when u ll complete your goal u ll feel happy and you ll b busy... drink 3lit of waters daily, walk daily 15min, ex daily, check your vitamins d3 n b12, help someone needy once a week. This ll give u happiness. Practice these things at least 40 days...because our brain neuron needs this much time period to learn n adapt. And everything is inside u... u have the power of healing ur thoughts n emotions just feel it with your each breath that u take...