If you really feel like you have a lot to learn then that's a good sign!
Maybe a next step is to start working with an instructor, which is what I did about a year ago. Even though I'm not a serious jazz aficionado (I listen to some, but I'm mostly into classic rock) he spent the last few months working with me on jazz flavored exercises and walking. That was a new thing for me and it pushed me to learn new things and think in new ways, which is a very good thing!
He also asked me at my last lesson where I want to focus on next and I told him reading. I can read bass clef well enough to learn how to play something, but there's NO way I could see a brand new piece of sheet music for a song I never heard before and just play it. Maybe I'll never get to that level, but it's a target to shoot for and even if I don't get to that point there's a LOT of room for improvement.
I don't know how old you are, but I'm 45 and that makes me exactly 30 years older than his second oldest student. So I was also going to ask if there are other adult students learning guitar and/or drums at the store I'm going to and, if not, does he or the other instructors know others who currently have adult students. My two guitar player friends moved within the last few years and I haven't really played with anyone else in a while. So I figured that other adults taking lessons a) are at same general level as me, b) are seriously interested in getting better, otherwise they wouldn't be putting in the time and effort to take lessons at their age, and c) would probably have musical interests or influences that are closer to mine. Getting together with other students who are similar would be much more enjoyable to me than getting with 13-15 year olds to play Slipknot or Fall Out Boy songs (and as the parent of a 12 year old I don't even want to think how creepy that would look to their parents!

)
Anyway, those are three things I'm doing to break out of the plateau I hit a few years ago and stayed until last year. Maybe they'll help give you some ideas.
