What's up. I weigh 120. Recently became a blue belt, started crossfit last week..haven't really trained any strength stuff until lately. Put your heart into repping. I wish I would have done it earlier. Just started getting into butterfly and club sweeps. I'm getting them on 200lb guys. Rep it on a big guy to get the best feel for it. My rep partner is 190lbs. I've been playing a lot of RG, mainly crack head control. The meat hook is golden! I love the triangle set up. Now I'm trying to work on my sweeps so I can work my top game more. When you flip a big guy over, they don't always know how to handle it and as a plus, when your little you can glue yourself to people.
My absolute biggest tips...T-Rex/home Alone like a beast. Clinch everywhere-top, bottom, everywhere. Practice recovering guard!! I cannot emphasize that enough. It is so important. Shrimp shrimp shrimp!! The better your hip movement is, the better everything is. Hope this helps!