With a massive sea of information out there it’s hard to determine where your focus should be spent, and you end up drowning in possibilities. You also need to ask yourself these questions; can you verify that the source is reliable? Even if you think it is, are you learning the right thing at the right time? Do you have a solid plan in place so that you don’t waste hours of your time on something that won’t really help you at all now?
If you’re working with a great guitar teacher, you won’t have worry about what you should be spending your time focusing on. You won’t have to wonder if you’re doing it right, if there’s a better way, or what you should be doing next. You’ll save yourself time and frustration scouring the internet looking for the right solution to get you to the next level.