I have being playing the guitar for quiet a while now(12+ years but more dormant years within this). I am able to deduce guitar tabs of a given song on my own(mostly with some minor errors). I have made a completely independent fingerstyle version of a song(and tried for other songs, but have mostly remained unsuccessful, and I made peace with guitar tabs). I know how to vary the strumming pattern within a given song. I know Rumba Flamenco variations upto some extent. But above all of this, I innovate and try to insert my own style in whatever I play.
Now, I did learn from a guitar teacher when I had started out, but in all truth, this teacher didn't teach me music theory or so. Most of what I am capable of performing on my guitar is by practice based on learning from youtube videos, etc.
Now, I want to rigorously begin from the beginning, starting from music theory concepts, etc.
My goal is to become more independent in case of fingerstyle guitar. Learning as much as possible.