If you like tea, why not try making some for others and have them bring their favorite flavors. Try new ones. You may be looking for a particular sensation or taste that 20 cups won't fulfill, so try new flavors. It may reduce the amount you drink when you find a completel tea flavor that hits the right spot not just a void.
Why would you want to avoid drinking 20 cups of tea? I’m not much of a hot drinks person but I manage at least 5 cups of green tea a day.