I'm so burnt out on guitar right now. The only thing that motivates me to do anything on guitar is the fact I'm going to school with it. I'm so glad this semseter is over, I probably will barely play anything challenging the whole break. Its all worth it though, sticking with it is the only way to improve. Although I hate guitar a little right now (hopes not to be smited by the guitar gods) I've gotten a lot better with the two hours of constant classical practice everyday. The benefits from being miserable for the past month or so have paid of three times fold though. Good luck.