I might have missed the mark with the title. This is actually a guide to getting a sound and trouble shooting. I am anything but a professional writer.
Guitar tone as any guitarist will tell you is paramount. A good sound starts from the fingers, through the pick-up to the guitar and out. If you don't start there, you're spinning your wheels and will end up with a transparent (fuzzy) sound without body and response. Your fingers are your tone generators. Not the amps or pedals. Those are tools to augment your expression. That's what guitar lessons teach you Any guitar teacher should not teach you a song without teaching you, and guiding you in technique.
You should also learn a thing or two about trouble shooting. Beginners, at some time in the future you will be able to trouble shoot on the fly which is very important. Trouble shooting is when you go down the line to find the problem with your rig. The same goes for finding your sound. When establishing your sound you start with your technique, through the pick-up on down to the amp. With trouble shooting on stage, you should start with the amp and go down the line back to you, which makes sense. Since you have established your rig set up. As you are trying to fix what was working, you back track.
Knowledge in this area saves time and controls moods. You are in control in these situations. Then, if and when you reach the big stage and you need to use a stage tech, you will have a template in which to explain what it is you require from the person you hire. There is nothing more frustrating than hiring someone, that has no idea what it is you need or want. It happened to me on my first big time sideman gig. Imagine working for someone that doesn't have a clue. Plus a band leader who expects you to read his mind. Communication starts with a plan.
You might spend the rest of your life in the study of the elusive art of tone. Whose tone is good? Someday maybe I will be able to dial in someone else's tone and tell you for sure what the deal is. I know I am dreaming. It's all subjective!
Good luck and sound good, where ever your muse takes you.