Success means different things to different people. Just being happy and content for a lot of people is success. You don't have to make millions. You don't have to be revolutionary. You don't need to be groundbreaking. You don't need to change the world in any grand aspect to get success. Sometimes success in life is getting a steady job, a place to live, a roof over your head, good friends, and just a good attitude. And I'd say that that's what true happiness actually is, is just contentedness in your situation. True happiness can be anything for anybody. No two people are the same.