Being yourself: Fake it!

Being yourself makes who you are. Being yourself is a part of your identity. Being yourself is equivalent to your personality traits. Can a person change over time? Surely yes, but do they change alot? How? Something happened to me in middle school, and I became the person i am now. The thing that happened to me isnt anything bad, I dont even know what it is! What was it that made me, not me? I really can't remember. However, isnt it very cliche and commonplace in stories and movies, where two best friends reunite and one is drastically changed? Well, that pretty much sounds like me right now. I want to be back to the old me, friendly, quiet, thoughtful. I want to get out of me that is obnoxiously loud, constantly screaming that disgusting high-pitched scream. What should i do to get back to the old me? Endeavors? I've tried, but i guess not hard enough. Is there anyone else out there that is in a similar situation and feel the same way that i do? I've heard of this quote in a book, "Fake it until you make it." Well, I guess that's exactly what I'm going to do from now. Fake it.