Totally.
Life takes it's toll.
It can make you bitter and cynical very easily.
Disappointment plays a big part. Not achieving the things you wish you could have.

who I am will always be the same, how others see me and what I can do is what changes

not many...cos i follow my heart n always do what i feel like...so..i'm pretty much what i want to be

I just be my own person

Yup.