First Training shift tips (foh)

I've finished all my modules and have my first shift training for foh. I'm assuming they'll probably have me serving dine in guests. I have previous experiences working fast food, but for some reason I'm really nervous for tomorrow. The rules seem more strict, and there was so much info in the modules than anywhere else I've worked. Also nervous about counting registers as the previous foh position I had had managers count due to people stealing, so I never got a chance to learn. Any tips for a newbie?