Maybe try a different outlook on things? Try and realize that everyone is there for the same reason, to improve. When you're rolling/sparring, remember this and don't look at it like win or lose. If you always tap out the newer guys and only tap to more experienced partners, you are holding yourself and those you spar with back.
Professor Pedro Sauer (Red and Black belt under Helio/Relson) says to 'sponge moves off of everyone' and tap as much as you can. That way, you see everyones game and learn what they know.
Easier said than done I know, but it works.