I highly recommend you check out this article if you want to really take your jazz practicing skills to the next level. These 6 steps will definitely get you moving in the right direction. If you practice well you will play well!
In addition, I wrote an article recently on the practice habits of a number of the great jazz piano players. You can check it out here jazz practice routine.
***BTW, new jazz video lessons have just been shot. I will start posting them in the next week. In the meantime check out some of these video lessons here two handed rootless voicings, bebop lick lesson, and this turnaround lick.