I can change I'm not the same

I can change I'm not the same
Not forever
What can I say I'm not OK
I wish I was
I want you back I want a time
I can remember
It's as simple as I say
I can change I'm not the same
Not forever

I have changed I'm not the same
Not forever
What can I say I'd be OK
And so would you
If you came back if you were here
You would remember
It's as simple as I say
I can change I'm not the same