How i decieded to stop sharing my feelings with my mom

one time when i was 17, my mom took me to Baltimore (like an hour and a half away) to help me get my driving learner’s permit. it was a special DMV with extra long lines, because i was not a citizen. the process took many hours of just sitting there (this was before smartphones), and I was incredibly bored. My mom asked me how i was feeling, and I told her I was bored.

Then she got super mad and said that it was wrong of me to be bored. that she spent the whole day helping me with this and how dare I say I’m bored. the whole drive back she was ranting non-stop about how ungrateful we are - for some reason she got mad at Emma too, my sister (not her real name), even though she wasn’t there. she kept saying we were not grateful to her and were super entitled.

She kept saying, wait till we get home and Emma hears what you said, she’s gonna be mad at you too I pretended to fall asleep in the car so that I wouldn’t have to keep hearing her.
Eventually we got home, and she told Emma and she was like ummm, yeah, of course he was bored and sided with me.
My mom stormed off angry. I decided that day to never again be honest with with my mom about my feelings