Ya know, I recently had a talk with my Grandmaster and I think his answer applies here. I'm a high blue belt in Tang Soo Do and there are people in much lower ranks better than me. Especially in sparring! BUT.... I recently asked Kwan Ja Nim if my daughter and I could try out for the tournament team. I said I know we have a lot to improve on. But he said "Don't ever compare yourself to someone else. Do your personal best, but above all else have fun. Comparing yourself to others makes you dismiss the personal growth you've made, so do the best you can at that time and forget everyone else that's there. Pretend it's only you and me!" So pick yourself up by doing YOUR personal best and only compare yourself to yourself, ya know?
Yeah I like that. Some nice advice given over there.