Way back 20 years ago when we first started pulling a travel trailer and I was a newbie,(not using radios) my wife was the one that used to direct me in, and I did nothing but yell at her. Then one time we pulled into a back in spot in the middle of a pitch black night, and I told her I would go the exact way she directed me, (we now had radios). I listened and did exactly as she said, and I never said a word back.
When she finally said "your good" and I got out, I could hardly believe that she had me in perfect.
I have never yelled or complained since that day.
Jack L