Forget the Past, Live in the Moment.
Don't Doubt, Just Believe.
Don't Change. You're Perfect.
Don't Listen to Others, They're just Jealous.
Eat your Heart Out, Sleep Away the Days.
Don't Worry, You're Perfect to Me in Every Way.

Don't Change for Anyone, you can be just be Yourself, Especially if the Person Loves You. 
If you are Wondering who This Person is... Its Everyone you Care About. But I'll Love You just as Much As They Will, Because You All Mean Something to me. Don't. Forget. That.