My suggestion is to approach everything in segments of three. Tell yourself when you are are thinking about practicing that you just have to get three productive things done. This could mean that you do one drill, work on one tough section, and then perform for a friend. It could also mean doing three drills for the day and then you are done. Something is better than nothing, and you will find yourself getting into a positive routine when you approach practice in this way. This is a good tip for the student that gets overwhelmed easily about practicing a long period of time.