my family acts as an excellent testing ground. we don't let members get away with squat. you screw up, we're throwing it in your face. we try to be a bit more gentle outside family, but among our own there is little holding back.
when i email my accountant uncle (who specializes in generational wealth), i never use puter speak. i become my old editor self, my grammer & language proofread & perfected. yes, i even use caps. so my brother throws that in my face. "why does uncle get the better emails?" because, brother dear, he's the bigger ball buster.
i just started using turbotax last year based on this forum's recommendation. when i told uncle, i was very surprised to get this odd momentary silence. i don't recall ever having silence from this guy who busts my chops at every opportunity. he knows i'm w*rking to learn about investment and taxes so i can do this on my own. still, if i was screwing up, he'd tell me. i would never get a compliment, but i have the sense that i must be doing something right. or at least right enough.