So I've got a girlfriend whom I love more than anything but recently I'm getting fed up with myself because I feel so comfortable and I don't know how I'm going to improve myself while in a relationship. I'm 21 by the way, and this girl I can see myself with for the rest of my life (and I thank this subreddit for finding her) so I'd never leave her, but what are ways to improve myself without actively picking up girls? I hit the gym, I dance, play guitar and whatnot but I feel incredibly shy and unhappy with myself.