One other thought on practice. I always have my students vary thier practice, play with accent on a different beat, loud, soft, slowly, as quickly as feasible, For instance - with finger picking - stress your first finger instead of the thumb for a change. It builds muscle and helps you to hear the musicality in the piece. Sometimes I have the student start from a second section instead of the first. All of this adds variety, and dispells boredom. Also, it helps with memorizing and allows you to see the music in a different way - sometimes you see a note or musical marking that you did not see before.