There are two ways to get Jiu-Jitsu knowledge...
For instance, you can stay in bottom side control and keep getting choked over and over and over again until you "accidentally" stumble on the right defense or you can do what very few people will do and simply ASK the instructor or another high ranking belt how to get out or how to fix their errors and save themselves ALOT of trouble and heartache. I know...that sounds obviously easy doesn't it?
The problem I see with the vast majority of students is they don't ask enough questions or even ANY at all. They might feel stupid...or intimidated...or they think they are bugging their instructor...OR they just don't think about it at the time. All of which can cause a longer learning process and the diminished chance to become better...quicker.
I promise you that if you will get a reputation for the person who is always asking sincere questions in class, your reputation will one day change to the person who is always kicking everyone's azz.