can’t access my administrator accout

I remamed the generic administraor account and was going to “set it aside” and keep the enduser account handy for “day to day use”, but while doing so, I made the enduser account a limited account. The account does still work for me for most of my needs, but I need the administratior account for some things and I have “locked myself out of the admin account”. In fact I can hardly find any traces of it. I keep reading that it is still there, but I can’t find it in “control panel/user accounts”.