grapplers

So I've started training BJJ 7-8 Weeks ago, so you'd call me the new guy right? That's what I thought. However, I've been left stumped recently with my training and how well its going; let me give context. - I'm the only White Belt with no stripes. - I have previous experience in Karate and...

As wing chun practitioners we train a lot to fight people larger than us, however that doesn't seem to apply very well when it comes to people who grapple well. What things do you do to prepare for people who are larger and/or better grapplers?