i listened to a guy on the radio who said he had tried many different jobs and career attempts, and was a complete failure for almost all of them. he didn't become successful until he was in his 70's. now he has a very successful radio broadcast.
another guy, who was a great painter, also followed the same course. now many strive to paint like him.
IMO, once you get to the point, where you ask the question that the o.p. is asking, that's when you begin to find the meaning of life..
it will be your own personal journey that no one else can answer. it is worth the journey. for me, i never felt truly alone with God by my side.