Hey everyone, I need some advice that I was hoping you guys could help me out with. Just for a little bit of back ground, I have been taking BJJ for about a month and a half and did my first sparring class last week. I was totally humbled by the experience and have never been through that type of work out in my life. I'm a skinny guy, really skinny, like with a soaking wet gi on I might hit 120 so I don't have a lot of choice to roll with much larger opponents, sometimes as much as 50 pounds heavier. What areas should I be focusing on when rolling with the heavier opponents? Over time will improved technique and posture help when rolling with them? Thanks for any insight you guys could give.