When i was something between 11 and 14: I was going to an eletronic store with my father to buy a cd player for me (i was looking forward to it) and my sisters

When i was something between 11 and 14: I was going to an eletronic store with my father to buy a cd player for me (i was looking forward to it) and my sisters where watching tv while they were already over there time budget. I didn't want that (not sure what english word would fit here) and pulled out the cable and the plug broke. My father was annoyed/angry and i was crying because we nearly didn't drive to that electronic store. I realized two things: 1. enviousness/distrust/jealousy is stupid 2. me being angry/crying about a situation i can't change doesn't change that situation I got less emotional/more rational after this event. I also think that this was one key point to become a nihilist.