Wow…I feel your pain!
I don’t have the sweaty hand issue but I do feel like such a dork in class and am much more relaxed at home practicing by myself. It happened to me again last night in class. Was asked to freestyle for a minute and felt like a deer caught in headlights. Kept telling myself to relax. Couldn’t think of the many moves I’ve been taught and can do…ugh! When does this get better?