What's important in life?
Why are you working? Why do you have an expensive car and house? Why are you saving a lot of money? Why are you investing? Why do you want to run your own business?
If you don't know the goal, then you are unlikely to reach it. If you don't know how to even set your goal, then read a book. Get some inspiration.
Watching the Olympics last year, it struck me how many people stumble in life after achieving so much. Be it booze or drugs or destructive relationships. Imagine if you had already accomplished all your dreams at an early age.
What else do you want? What is success to you?
Try to remember that happiness is independent of material success not because of it.