Hi oregonguy,
Believe it or not, I’m sure your parents understand and chalk it up to youth/immaturity. After all, if you’re 30 years older than someone, you will always think of them as a “kid” going through a “phase”. LOL
My dad expressed remorse to me years and years and years after my grandmother had died. He admitted that he was a little mean to his MIL and regrets it so much. I told him I’m sure she understood and was more forgiving about it than he thought. She never brought up any bad times and only spoke about him with love and affection!
Strive to do better and you’ll do better in time.
Inky