Break whatever you are learning into tiny chunks—a little part of a song on the piano, a word or verb conjugation in Spanish, a side kick in Tae Kwon Do, or a homework solution in trigonometry. Practice that chunk of material until you have created a solid “neural chunk”—a pattern that you can easily call to mind and accomplish. Once that chunk is mastered, however, don’t fall into the trap of repracticing it just because it’s easy and feels good—instead, keep the bulk of your focus and practice on what you find most difficult.