If you're gonna talk for a long time, you're gonna have to take care of your voice. You'll have to warm up, you'll have to get into a good posture, breathe properly, and a bunch more stuff. I talk about that stuff on today's podcast!
Read this book: The Art of Voice Acting.
Today's Podcast Roulette: The Ben Shapiro Show, https://www.podcastone.com/the-ben-shapiro-show