I'm not the OP, but after I practiced meditation intensely for a few months I found two huge benefits:

First: before I meditated I used to get annoyed and bored when I had to do chores like washing the dishes or standing in line. But after meditating for a while, when I had to do such a chore I'd just focus on my breath and I'd no longer feel bored or annoyed. In fact, such chores and waiting in line became almost pleasurable because they gave me an opportunity to meditate.

Second: when someone said something mean to me I would just focus on my breath and sort of catch myself about to get angry and saw that I had a choice whether to get angry or not. I didn't have to get drawn in to the hurricane of feelings as an unconscious reaction to the meanness directed at me. Instead I could just continue to focus on my breath and I wouldn't get angry at all.

Unfortunately, for some reason that I no longer remember, I fell off the wagon of meditating regularly and went back to my old easily bored, quick to anger self. I still try to meditate occasionally by focusing on my breath, but it doesn't help nearly as much as when I meditated regularly for hours at a time.