Happiness takes a lot of work but the ideas behind it are easy. You need to go out and let your body do what it's built to do every day. Stretch, ache, get your blood boiling. Find friends. People meet up in all kinds of places, you just have to learn to be vulnerable. Learn how to cook good food. Get good sleep. Your bed is strictly for sleeping now. Commit to each of these things for at least two weeks so that it becomes a habit. Give yourself a reason to live.