Like HolySmoke says if you're aready losing the desire at 22 you're in trouble.
I would like to stress to you to try not to quit, and to try and make it more fun,,,it all depends on what you really want but you will be sorry down the road, the benefits are so great and when you're 22 you just don't know how much easier it is then it will be down the road...don't quit.