When tackling something we can't play there is a series of steps to follow to go from I can't to I CAN!
1. SLOW IT DOWN
The most important thing to do when you are tackling something unplayable at the first tempo is to pick a tempo that is quite a bit slower and try again. If you still can�t play it, slow it down again! Continue this until you find a speed that works for you. This method will not fail! Once you have found a speed that is playable, work for several minutes at that speed and try to memorize the sound of the pattern and the way it feels to play it. The next step is to gradually increase the speed until you are satisfied with the way you play it.
2. COUNT OUT LOUD AS YOU PLAY!
If you are playing a written example from a book you will find that counting it rhythmically as you play it will usually help you learn it. It is also important to create a good practicing environment. It should be a quiet place with privacy because interruptions will hurt your ability to concentrate. Good lighting and comfortable temperature are desirable and it is very important that it be convenient to get to your instrument. When you have to travel to get to your drums it is easy to find reasons to put it off until later.
3. PRACTICE EVERY DAY FOR BEST RESULTS
Missing a day or two hurts and can set you back. Do it when your mind is fresh and uncluttered, not late at night when you�re tired, unless absolutely necessary. Don't repeat what you can already play over and over. Work on the area that gives you trouble. Isolate the problem and concentrate on that place rather than continuously repeating that part that you can play. If you don't get it the first day, don't despair. Try again tomorrow and again the following day. Rarely will you not get it on the third day and have it completed within 7 days.
Follow these steps and you will be a better drummer faster!