I'm very depressed all the time, what can i do to be happier?

Happy: The combination of an antidepressant medication with therapy (preferably cognitive-behavioral therapy) will help you learn the tools you need to function effectively and lessen the severity of the depressive symptoms. If you are not interested in the medication management, then therapeutic intervention is the best you can do to help yourself now and in the future.

See below: Talk to you your primary care doctor to find out if there are/aren't physical causes for your depression. Follow routine, which makes environment more predictable; establish goals, small and achievable. Look into positive aspects of your present environment (things you laughed at, best food you ate, good people you met, etc.). Create a crisis card to help you get through the "bad" days.