There are definitely other things, but they are not things you can just swallow and wait to work. Keeping your life organized, so that you get up in the morning with an idea of how you are going to spend your day. Planning to do something that involves some exercise. Even just deciding to walk to the store for a gallon of milk can be a good idea. (I can never just do calisthenics of anything that has no point to it. I'll only move, if it's getting something accomplished.) Maintaining your environment by straightening out what's around you. Also, finding something to participate in that gets you involved with other people.

Sometimes we're unhappy because we our lives are not about anything that can make us feel like we are accomplishing anything. Then all the pills in the world won't help.