I think it's still not perfect for me! [Privat Heading]

Many friends of mine tell me that i'm really thin and i don't have to lose more weigh. but for me i still have not perfect figure. I need to lose some more kg and do much more sport than now.
I'm awful perfectioner. I'll never see the end of perfection. What can i do, i'm such and i won't change whatever i do.