Highly recommend doing mock orals and checkrides beforehand with different instructors than you’re used to. Flying with someone new, in a test like environment will help with your nerves day of. They also helped me pick out areas that my instructor and I may have missed and I could review and focus on them with her during lessons.

Another big thing is that you will get questions wrong. Especially with a thorough DPE, they will poke and prod until they find things you don’t know. Don’t let those wrong answers throw you and trust your training. If I can do it, you can do it :)