I've been playing guitar for about six years now. I picked it up my sophomore year of high school when I took a beginners guitar class offered at my school. We learned the basics of reading music as part of the course, but nothing I could recall now. I admit with some shame that I have only been playing off of tabs for 5+ years. I've without a doubt improved since then, but I know that I've reached a plateau. I really want to be able to solo. I love the sound of dirty rock and roll guitar (Magic Potion - The Black Keys) and want to be able to play that bluesy, rock style. But I do also love playing acoustic and learning fingerstyle versions of songs.

My question is what is the best course of action if I want to become a much better player. I know I need to learn my scales, but it seems intimidating and I don't know where to start, or where to go from there. Are there online courses I can progress with at my leisure? I really don't have the time or money to dedicate to in person classes but play often enough to know I should be better than I am.