So I love Jiu Jitsu and it's fun to learn but I'm getting frustrated because I'm not the biggest guy. I'm 6'2 and 11 stone and I think I'm okay technically obviously not great but I know my techniques and I can work them but when it comes to rolling a lot of times I just can't do anything to guys who are bigger than me. Not even strength strong but heavier. E.g tonight there's a guy who's trained maybe a few weeks and he's about my height but must be about 6 stone heavier and I just couldn't do anything or move him off because of the weight I know it's a learning curve but frankly it is disheartening when you train 4 times a week and get beat by a guy just because he's fatter than you and I don't mean that to sound rude or offensive but it's just what seems to be happening. I know my techniques because when I roll with someone either my size or smaller than me I do okay and my techniques and sweeps they work well but it's just the weight difference. I don't know how to stop that. I've been doing weights and push ups etc to build strength and Im going to ask next class but just wondering if anyone has any suggestions. Also I don't have a problem with losing I know it happens and I'm fine with it but I find it frustrating when guys rely on nothing but weight and obviously have very little technique.