Lots of us who have made games have released bad or unpopular games, but the experience of releasing was still meaningful and educational.
Even if you do release it and it's bad, you still released it and learned. Showing in-progress things to players helps you make it better before you release it. Third is that designers don't playtest enough, and tend to keep their work secret. There's that scene in Tron where Jeff Bridges wins all the games in the arcade because he was secretly the person that made them – that's you! You're too good at your own game, so you need to test it on people who haven't played before to find the right difficulty. Second is that new designers (and even veterans) design to their own skill instead of a player picking up their game for the first time. Image Credit: Nintendo / TechRadar (Image credit: Nintendo / TechRadar)