I want to begin training in Krav Maga however as soon as I start doing intense physical activities my body releases a huge amount of sweat over my arms and legs to the point where people's hands slide off me when the move we're learning requires grabbing arms.

What do I do? There's cute girls that I'm being paired off to wrestle with and I just go red in the face because they're trying to perform a body flip and they can't even get a good grip on me. Mortifying.