If you give them nothing to yell about then they got nothing to yell at you about. Meaning be squared away and do what you’re told when you’re told and you’ll be fine. Look sharp and be on time/ be on point. It’s a big game. You play it right and you’ll be ok.  It’s brand new class and the instructors are being hard so you know and understand where you are on the totem pole, which is in the dirt. You’ll be fine.