Listen carefully to your Drill instructor and do EVERYTHING he says down to the last letter. Second give 1000 % in anything and everything being a marine is the toughest thing you can do.. trust me im in the infantry... Also you need your whole platoon/company to succeed especially in The Crucible work as a team when needed to. Don't give up no matter what they would rather see you pass out of exhaustion than give up. And u have to keep thinkin that you can push your limits even further. You need to act professional too, keep your jokes, laughing, pretty much all fun back at your barracks or your ass will get chewed out. Be the best think like the best and most importantly think like a marine.. Semper Fidelis