Some other things to study.

Study:

https://www.reddit.com/r/judo/comments/66k9wf/mapping_your_ground_game_or_manim_such_a_typical/

https://www.bjjcanvas.com/making-no-gi-ezekiel-choke-effective/

http://bjjpressure.com/bjj-fundamental-principles-for-every-position/
from: https://www.reddit.com/r/bjj/comments/7ec2i4/general_fundamental_bjj_principles/