"No, much rather, those members of the body which seem to be weaker are necessary. And those members of the body which we think to be less honorable, on these we bestow greater honor; and our unpresentable parts have greater modesty, but our presentable parts have no need. But God composed the body, having given greater honor to that part which lacks it" (I Corinthians 12:22-24).
There are going to be incidental times when you might see another male naked, such as in changing rooms. One makes the best of such situations by being respectful of others and their privacy. However, here the nakedness is not needful. You can measure your progress while wearing shorts to cover your private areas. And if for no other reason, if you are uncomfortable with the way things are going, the best thing to do is keep even the remotest possibility of temptation at bay. "Do you have faith? Have it to yourself before God. Happy is he who does not condemn himself in what he approves. But he who doubts is condemned if he eats, because he does not eat from faith; for whatever is not from faith is sin" (Romans 14:22-23).