I look my best after an entire hair and makeup team has spent hours perfecting me. When do I feel my best? When I haven't looked in a mirror for days, and I'm doing things that make me happy.
So as long as I'm a working actor, I can improve. I want to work with people that frighten me and excite me, and characters that I don't believe I'm the best person for the part but I'm still gonna try anyway. Those are my favorite roles.
Whatever you are made of, be the best of that.