Lost in Pretenses

I think I've been tough for too long that I'm afraid I'm unable to go back being what I used to be. I mean who I really used to be. It's a lie I'm living in everyday, deceiving people into thinking this is what kinda person I really am but truth is, I'm just getting drown into my own lies and pretenses. The person I was trying to be now has become myself. And my real self is now gone. What should I do?