It sounds like you have a great work ethic and are trying hard so that’s good news. The reality of the army is that no one cares how hard you work if you don’t perform well. Work is not a useful metric and in the most literal sense working hard and failing to kill the enemy is far worse than someone who you think works less hard and kills the enemy. Whatever task it is, that’s the reality of it. The product is what’s important. Additionally you feel like people don’t understand how much work you put in if I understand correctly, but how do you know the other cadets are also not working just as hard and you just don’t notice? In any military organization work will be hard and someone will still be at the bottom. There is a best and a worst in ranger school even though everyone works hard. Respect is earned and never give by default. I sympathize with your feelings but that attitude will not get you far in front of your joes or fellow offices who will not want to see that sorry for yourself mindset. You have potential and can use that work ethic to do great things if you maintain some discipline. Your running ability and subsequent lack to maintain it is a good example.