“Every single day.” Good practice is all about working on something you can’t do, so it’s natural to feel stuck. Embrace that struggle, because that’s what good practice is. Practice is often fun, but it’s not supposed to be easy. Don’t label something you can’t play as “difficult,” though. When you label something you can’t play as difficult, that label sticks, even after you’ve mastered it. Instead, think of challenging music not as difficult, but simply as unfamiliar. Good practice is all about embracing the challenge of making the unfamiliar, familiar.