Practice Tip #7 of 7: Give Yourself a Break
7. Give Yourself a Break in the learning process, and particularly if you're preparing for something big. Yes, you need to learn your music inside & out so you can sing/play it by heart, but you also need to give your brain and emotions a break so you can enjoy what you're doing and make sure stress doesn't sidetrack you. Some suggestions I've heard from professionals of all levels over the years: Read a good book or watch a movie to be transported to someplace completely
Practice Tip #6 of 7: Practice Makes Permanent
6. Practice Makes Permanent means if you practice wrong notes, those notes will be harder to correct, and possibly become permanent. That's why Tip #5. Woodshedding is so important. TAKE YOUR TIME to learn things correctly the first time. In the long run, it will save you time and you'll feel a lot better about your performance.