"Feel like" crops up a lot. To me, it illustrates that you feel a difference between who you feel you are and who you think you should be. Ask yourself why there's that difference. Often times, it's only you that thinks that you 'should be' this or that (nobody else gives a damn) You've created that 'should be' image, it doesn't belong to anyone else, so you can equally destroy it.
Act as you feel, whether that be 12 or 50. Even if only to see where it takes you and how it feels. Let everyone else be damned.