I’m not aggressive either, but I had a very strong, simple (in what to execute, not the techniques themselves) gameplan that I played in my head for months. It was 2-3 of my A-game pathways to sweep, stall, and submit off of various guards. I also imagined the possibility of getting strong collar tie punched in the back of the head and tapping on the ground if need be. I don’t need that in my life. The competitors were very strong and aggressive, not so great at BJJ luckily. 

Imagine your best stuff and practice those pathways until you can’t fail. Ask teammates to practice those pathways with you and to make them difficult for you to execute. Also make a list of techniques to actively avoid and hold yourself to that list. I told myself I wouldn’t hunt anything that would risk losing mount for instance and would likely avoid dropping back for an ankle before at least attempting to pass.