New Found Glory - Certain lyrics

My life is an open book of changes
And this just occured to me
I dream of all these different places
That i would rather be i know
That all i want is to be a man
Who is certain with himself
My battles aren't won
Until i'm certain with myself
It's hard for me to feel this anymore
Where have the feelings gone
I need to stop myself from hiding
I've been down for far too long
I know these worries of mine
They won't change like the world
I'm in how do i change myself