I made the first one when I was too dumb to know better. I only made the second one because I had gained enough years of experience in the hobby to make it work well. Making a fast plane doesn’t automatically make you a child, but not learning from your mistakes when you do it again does.
I prefer to think of myself as a young man too, but to call yourself that you have to act like one. Not saying that you don’t, since I don’t know you well enough to tell if you act like a man or not, but I’m just saying that it isn’t just something you call yourself and expect it to be true. You have to first become it before you can call yourself a young man.