Instructors are human. Some are good at what they do and some are terrible. The terrible one's can put your life in danger or at least make your diving experience miserable. You are a beginner. You are suppose to make mistakes. That is how we learn. The instructor is there to teach, instruct, and provide a supporting and safe environment. Your instructor should not be an instructor. Just because he has a piece of paper that says he is an instructor, it does not make him a real life instructor. Your OOA sequence was out of order but so what. He should have taught you. He made the following mistakes: 1. When someone is out of air you always assist them until they are breathing comfortably. He failed when he did not help not you. 2. Your sequence was not in order. He failed again when observing the first time, he did not instruct you on the proper sequence. 3. He failed again when he failed to assist you the second time. 4. He failed you a fourth time when he did a night dive on an OW certification training. That is for the advanced class. 5. He failed a fifth time by not having proper lighting. I always carry a light. Everyone should have had a main light, a backup light, and a light or glow stick in your tank. 6. He failed you a sixth time when he left you alone. Buddy Diving is essential for safe diving. You are backup for each other. This instructor is a total failure and should not teach. He puts his students in danger. I would never dive with him even recreationally. Who needs a reckless, careless, and inconsiderate Buddy Diver. The good that can come from this is that you survived a very stressful situation. You became thoughtful and searched for solutions. You did not panic. You learned that you must trust yourself over an idiot. I hope a future student of his yanks out his regulator (pulling out some teeth) and gives him a good kick in the crotch. I mean that in a nice way.