Explain what you want. It’s that easy.

I did many years of “I want something simple that I can maintain easily, and will still look ok when I drag my ass out of bed at 10am, an hour late for work. Anything but a buzz cut”

Eventually I found something that I can touch up at home myself, and can explain to even the shittiest of barbers.

It’s hair. Nobody really gives a shit. You’ll get some shit ones, some good ones, a buzz cut you explicitly didn’t want. Nobody got hurt, and it grows back.