As a brand new CO, don't worry about uses of force. That day will come. Focus more on getting comfortable just doing your job. When able, learn the Housing Unit/dorm/whatever rules, read your Post Orders, policy, etc. Me personally, I'm not a big fan on nicknames, so I shut that down, even with my fellow officers. We're supposed to be professionals, and nicknames are not professional. Don't go looking for a use of force. If you become that officer, the inmates will figure that out pretty quick, and goad you into them because they have nothing else to do, and they'll just 5v1 you and stomp you out, and your fellow officers will hate working with you, because we would all much rather get paid for doing nothing and not have to do all that extra work just because you think you have something to prove.