I don’t know if someone hurt you with their negative comments, recently or as a child growing up, or you’re just obsessed with your darker skin and wished you had a lighter one (for some reason).

If you, internally, believe you don’t look good, it'll be too hard to help boost your self-esteem and you'll always feel fully or somewhat insecure about your own self image.

You need to identify why you’re restless about this issue, only then you can start addressing it.

Salam