Couple ideas that might help...try playing the scales and modes in intervals....1-3-2-4-3-5-4-6-5-7-6-8-7-9-8...then back down...or 4th's or 5th's...this will give you a lot of different sounds and mix things up a bit.
Another idea is to record a certain progression with a tape recorder....then practive improving different scales over the same progression...hope that helps.