Self improvement is a very worthy goal. Most of us are works in progress all our lives (and that is a ''good'' thing). Sex without a relationship is rather meaningless and empty.

Work on your Authentic Self.

How are you feeling now?

''Your authentic self is who you really are deep down. The part of you that doesn't care what others think. Learning how to be your authentic self is an essential part of building meaningful relationships. Authenticity happens when your words, actions, and behaviours consistently match your core identity.

But many people struggle with expressing themselves openly, figuring out who they are, knowing what they want out of life.

(from SoulSalt - first time I found that site) (I'm sure you can google Authentic Self and find many helpful articles, I just googled that very quickly)