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 [2x]
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