No. Even if you quit tomorrow, Aikido will haunt you. The books in the sports section will call to you. News of another dojo in your area will pique your interest and hold like nothing else will. And sooner or later, as much as you try to fight it, YOU WILL GO BACK! And the madness starts all over again.

Face it: You're doomed. (What's "abandon hope all ye who enter here" in Japanese?)