Is There a Right Way To Set My EQ?

I usually set my amps preamp gain at about 11-12 o’clock and then set the volume appropriately for the room (unless it’s a super low volume gig and then I may have to set both the gain and output volume very low. All of this is to say, explore to your heart’s content and learn as much as you can about your gear but, ultimately, there is no “one way” or “professional way” to do it beyond truly learning how to produce the sound you want with your hands.