Have you ever found yourself practicing a piece, but feeling like you were just treading water and not making any progress? Don't forget the metronome! If the piece is long, you can segment it into smaller pieces. Use the metronome to help you make measured progress.
First, set the metronome at a speed that is comfortable for you to play with no mistakes. You can set the click to the quarter note, eighth note, or even sixteenth note. Play the section or piece, then gradually increase the speed, making sure you play perfectly every time. When you are done with your practice session, write the tempo at the top of your piece so you know where to come back to it.
Before you know it, you'll have made great progress, and you will have practiced the piece perfectly so many times that when it's time to perform, playing it well will be second nature to you!