I donāt know if I should answer here, because Iām not 100% an introvert and I am - generally - a very creative person (INFJ, according to that test - although I studied psychology for a few semesters and therefore I believe that these tests arenāt able to get your entire personality, even though some of it might fit).
Anyways, despite being a creative ambivert, I do get where you come from. I love directions when Iām learning something new. It was like that with my martial arts training: My teacher always said that I was the student with the most questions. Itās probably a good thing, Justin isnāt in the room with me, because Iād get on his nerves with all of my questions very easily.
What helped me, though, and what I wanted you to know is this: We donāt have to be anything other than having fun with our hobby. We donāt even need to be good at something. If being creative in the sense that you write your own music isnāt something that makes you happy: Donāt do it. If you donāt want to play in front of other people: Donāt do it.
Iāve been learning to play guitar for 11 months now and Iāve NEVER played in front of anyone. Christmas might be the first time for me to let my parents see me hold my guitar. Playing guitar (or rather: learning how to play) got me out of a really bad place regarding my mental health. Which makes me fiercely protective of it. No one is really allowed to touch my guitar (which is fun at a guitar shop - I basically want to strangle the person daring to touch it and still I need them to if they have to check itā¦). I donāt feel comfortable with the thought of someone criticising my playing. Thatās something I have to work on, as I do want to get better and therefore I need people to at least watch a video or somethingā¦
What Iām trying to say is: I get it that for you guitar is like this and it is completely fine to be this way. The āonlyā thing you now have to do is find a way to do these āby the bookā things, that seem to make you happy. Still being very much a beginner myself, I donāt really have good advice on that. My approach would probably be to look for songs I like and then master them - by the book, in your case. Thereās lots of music out there and lots of tabs/sheet music for it, so you probably find enough tricky songs that will keep your brain entertained.
I think the most important thing is to do the things you enjoy in the way you enjoy them - itās your hobby! Not a job or something someone else depends on. Itās only for you If, at one point, you think youād like to change something or you feel you could improve in a certain way, thatās totally fine. Take baby steps in that direction (e.g. Iām recording the audio of my playing. Not to show anyone yet, but itās a baby step). No pressure.
Hope this helps. Itās mostly rambling without much input, but hey - if it helps it helps and if not, you can easily ignore it