If you need a book to organize how much bjj you know, then you dont really know it that well.
I see younger wrestlers do the book thing all the time and its the same thing. I did it as well when I was young. I was taking in more information than I was actually putting in quality reps with.
You need to address this with your coach. There is a ratio that I learned in my education theory classes when I was becoming a teacher and it holds pretty well to wrestling/bjj
PRACTICE TIME (DRILLING) TO INSTRUCTION TIME
Beginner: 3:1
Intermediate: 5:1
Expert 20:1
If you arent following that equation, meaning for every move your coach takes 5 minutes to show, you do 15 minutes of drill uninterupted for, your ratio is fucked and you are getting over coached.
I teach only a small group, most of the times is about 5 - 10 guys tops, so I kind of gives me the privilege of staying on their asses as they do technique or drilling or situational sparring, so It might be different than you, also, I dont know shit about grappling as a whole comparing to you, so basically is just my opinion on trial and error...
For example, I do go over things a lot, depending on who am I teaching to, for example, Im with a total new white belt, teaching basics move, lets say the RNC, I will put more focus on him learning the move as a whole, than the details... so I would not show many details, just will pair him with another white belt and make them do the move, make him feel the choke in this case... now when Im teaching a more advance group of guys, its different, for example, I would go a whole class abou back mount, specifically RNC, with all the details, really deep details, like hand fighting, different counters to the defenses, etc... now I would try to put on some logic on every single move, for example, I would not just go and tell them, grab this way because I say so and do it 1000 times... I would rather spend a little bit more of time explaining why I want them to grab this way, and showing them live... I believe this way, the technique is fixated way more, you take away the doubt that normally everyone has, the WHAT IF, by explaining the principals, you are making them understand the mechanics of the move, more likely convincing them that the move works. If this wasnt the case, I take my experience as an example, the student could go around trying stuff and wasting his time to only come back to the original techinque shown. Also, since theres so much techiniques online, everyone wants to taste the waters by their own, of course this is not a bad thing, its good, as long as the person is watching the right person, because there is SOOOOOO much crap on youtube as well... In my case, im just a purple, so naturally people tend to doubt somethings I show, thus my reason of explaining techniques in deep. I run a 2 hours class, so I have plenty of time to explain and after that, technique and situational rolling on the positions, so they get to try everything live. If I see someone doing something wrong, I will stay by him and watch him, may be try to coach him, If I see he doesnt listen, then I will stay still till the position changes, and ask him why did he fail to apply X move, what did he feel? I will show him what he was doing, vs what he was supposed to do, put them back into the position, and trying again... So far, I think Ive seen people progress very well under this system...
I think lots of drilling, putting a lot of reps into a positions is only beneficial if you get to put the same ammount of time or more into situational sparring from that position (or at least try to mimic it, there are some positions are really hard to be place into situational sparring) and that is only possible for guys who train like pros, regular joes who go to class for 1 hour or 2 do not have that time, I believe time is better spent into getting people to understand positions and rolling than repetition for the sake of repetition.... Basically, its good to do 1000 reps of something, but you need to put taht into a resisting situation, jumping straight to other positions and doing 1000 of other without situation sparring does not produce optimal results (at lea st I gathered this from watching some higher belts that drill like crazy but do not do much of situational sparring, and when I see them in competitive rolls, I see no mayor improvement into their technique, at least not in relation with time spent drilling)
but like I said, my experience is only teaching small group of people, I can understand than teaching a large group changes the whole methodology of the class...
take in count I only teach to novice intermediate class (white to blue, may be some purples that drop by no gi days)