I can relate to so much of this! My first username for an email address was, if I remember correctly, shortyness2005. I'm of average height but several of my classmates were taller than me so they called me 'Shorty', and 2005 is the year I graduated from high school. Obviously, this name did not stick with me because it really is too childish. I like happycrazycon though. It doesn't strike me as childish, but I can definitely relate to your feelings upon realizing most people use their real names as their Steemit-handle. I very much felt the same way. The thing that made me feel better is that there are several whales who do not use their real name as their handle. :-)
Also, you have a wonderfully honest way of blogging. Very nice to read.