Fear of failure will absolutely destroy you. You walk down the middle of the street. You never take chances. You never go down the little side streets that you look at and say, "That looks interesting, but I don't know that streets. I'll stay right here and just walk on this straight line"
People who grow up without a sense of yesterday has affected today are unlikely to have a strong sense of how today affects tomorrow. It's only when we become conscious of the flow of time that that the consequences of action --whether it is taking drugs or dropping out of school-- become a consideration. It is only when we have perspective on our lives that motives besides immediate gratification can come into play.
Maybe it's the best way to treat happiness like a deer in the forest. Sometimes it will emerge from the woods and pay you a visit. But it dislikes undue attention. And if you chase it, it will run away.