I have QB Desktop Pro Plus 2019, but the person who initially posted some of these instructions that I followed had QB Desktop 2021 if I remember correctly.  We're a contractor as well, but I like using and adapting the regular version because it seems more versatile (perhaps my assumption is wrong, but I like the original.)

I truly wish you the best of luck and hope that you don't give up.  After a while though, enough is enough!  Hang in there!