You are always going to find people who know something you don’t, but the core discipline to learn and progress you have more than proven. Knowing more stuff is

You are always going to find people who know something you don’t, but the core discipline to learn and progress you have more than proven. Knowing more stuff is just like a cache in a way. You can do any one your peers can do if you learn that thing. But no one can learn everything! Hence teams exist with different skill sets. You’ve done amazingly well to get this far. It’s ok to keep going up, it’s ok to cruise for a while too. Good luck!