So I've been taking Bjj since mid January, and with the exception of missing a week for illness I've took 3 classes per week...fundamental, advanced and no GI. Class usually consists of doing shrimp crawls, drilling 3-5 techniques and then rolling. There are several white belts going from 1 stripe to 4 as well as blue and up. I haven't earned a stripe and only got 1 submission against a wrestler that showed up for 1 class. Basically I'm surviving right now. I try to get submissions but can't and even though on some occasions I can roll with a 4 stripe without being submitted, 90 % of the time it's not the case. Do I just suck or is this normal?