The meanest thing anyone's ever said to me was said to me 10 years ago when I was 13 and I still remember it to this DAY. Well it was 2 incidents - one was when I walked into my friend's homeroom class to give her something, and I had a giant red pimple on the centre of my nose. It was right before the winter holidays so a bunch of the boys saw me and then yelled out "IT'S RUDOLPH" and laughed their butts off while I cried on the inside.
In the same year, my group of "friends" that I was going to room with at a hotel for our elementary school graduation trip decided that they didn't want to room with me anymore cause I was "weird" now. The only thing that had changed about me was my face so you can imagine how that felt. Kids can be so cruel.
But the best thing I've ever done for myself is cut all those people out of my life. I haven't received negative comments from anyone anymore in the past few years and the only time anyone brings my skin is to either tell me that it looks fine (whether or not that's true) OR to give me some actual advice/tips that they've heard that I might find useful.