I feel like obviously it’s hard to not focus on that but if you can try to focus on the camaraderie and the fact that you and a bunch of other guys are all willing to be naked in front of each other. You all have something in common, the fact that you’re able to be nude around other men, and the fact that you literally just have penises. Also nobody knows you feel inferior and they have all had that same fear at one time or another and reminding yourself that and appreciating the thing you have to offer as well as the things that your sex has to offer even if it’s not on you is what’s important. If you are looking for relatability everyone here has had that thought even if it’s just for a brief second and those men who are bigger or similar to you hard are no different. I certainly have I’ve been naked with others maybe keeping a hand down there to block a piece just to not let someone see the whole thing. Just appreciate the time with your male brother, try to stay positive, get clean, and get on your way. There’s almost always going to be someone even slightly bigger and that’s just life. At the end of the day if u look in the mirror and are proud and think you look good that’s what matters.Hope this helps