Dear Squishy,
Quitting each game you enter after 15-30 seconds is not going to put you in appropriate skill tier (you're still not fully ranked in any mode!) Nor is it going to help you improve.
This is Quake. If you're a type that gives up quickly, maybe this is not the game for you. But I promise you, if you stick around and try to learn the game, you'll have the type of fun that is not available in any F2P game where you can buy "enhancements"
Or are there other obstacles than too good opponents in the first games and overall lack of new players? I can find only one other thread of yours, so maybe I can't see the whole picture? Tell us about it.