This is something I have known for years, but I have just started implementing with great results. It works wonders if you are having a hard time making a start on things and you are, like myself, a procrastinator. After all we are creatures of habit and all we have to do is allow the time for a new habit to be formed, until it becomes part of our routine.
It takes 21 consecutive days to form a habit, and about 30 to make it become part of your routine. Start with something generic, like ‘I will practice for the next 30 days every day’, to go to something more detailed like: ‘ I will practice every day for and hour the next 30 days’, or ‘I will practice transposing one tune a day for the next 30 days’ or ‘I will practice to learn major scales for one hour for the next 30 days’.
Just do it, do not be to harsh about it, and you’ll see great results. Make sure you stick to it, don’t give yourself a choice! This is great also to remove negative habits, like ‘I will not judge my playing negatively for the next 30 days’ or ‘I will not ‘noodle’ for the next 30 days’ or ‘I will stretch and correct my posture before I play for the next 30 days’
Watch this great video from Ted.com, you can apply this concept to everyday life.
All you have to do is to make a 30 day calendar to to keep track of your progress, and tick a box once you have achieved the result. I use this great little template from this page (the article is definitely worth a read):
http://andrewdubber.com/2010/03/30-days-of-ideas-05/
I like to print a few an a A4 page and mark the starting date on each 30 day calendar. Most times, I find myself continuing with the new habit after the 30 days without having to keep track.
Good Luck!