The truth is you don't know what is going to happen tomorrow. Life is a crazy ride, and nothing is guaranteed.
If people take anything from my music, it should be motivation to know that anything is possible as long as you keep working at it and don't back down.
People can try to reinvent themselves. I don't think you can really change who you are, though, because who you are is pretty much where you came from and what you've done up to now.