Some people tried so hard to be a different person from who they really are.
Some tried to be crazy, others tried to be noisy and wacky. But I really have to say that all these might help in their interpersonal relationships. But they are not showing their true faces. Or rather, they will selectively show their true colors to certain people.
How tiring is that? Very, from my point of view. I cannot imagine myself, being a hot-tempered and straightforward being as I am, would want to act demure and gentle and approachable and soft spoken. Practically mission impossible.
Personally, I don't find anything wrong in being yourself, expressing your thoughts through your own mouth and acting just the way you are. You just need to look around, and those friends who are still by your side are probably the ones who have accepted you for the way you are. They have probably spent enough time discovering your strong points, and trying hard to ignore your weaknesses. Those who cannot accept you shouldn't even be called "friends". More like acquaintances.
So live life the way YOU want, not others.
Be yourself. Be happy. Be confident.
"Nothing is as tiring as trying to be a different person from who you really are."