VxFx gave you some pretty good advice. You've only been playing two years
and you
have miles to go. Take the guitar in the bathroom with you. When I was
younger, that's
the only place I could concentrate. Believe me a bunch of fine guitarists
learned to
put changes together while taking a dump. Don't practice when you're feeling
frustrated,
but try to keep your excitement level up. I used to do this by listening to
great jazz
guitarists. Listening is a very important part of the learning process. An
excellent ear
is crucial for a good jazz guitarist. Stay with it and good luck!