you have found out something that will free you to really enjoy your craft from here on out. congratulations.
i discovered many years ago, in relation to my job, that i really knew much more than i thought i did. also, that some of those people that i thought were above me in skill were really faking it or getting by. since then i have had much more confidence in my own skills. this has allowed me to do so much more in all my endeavors.
keep going and never let them see you sweat. (tee-hee)