I don't know what to do with my life
Do you know why you may be feeling this way?
I just feel like I am unaware of the meaning of my life.
It can be hard, and confusing, to now know what to do with your life.  However, there is always time to find a new passion.  Just try new things and see if you want to keep at them.
I'm too old for that shit.
It is never to old to do things that you enjoy. Just think of it as living your life to the fullest. It is only right to feel confused when you are not sure of how to spend your time.