I got a sunburn

Okay so if you know me you know I'm deathly afraid of the sun bc I don't want my kids or myself to get cancer. I try to limit the kids sun exposure. We go out daily and try to stick in the shade. The second anyone looks pink we come inside for the day. I do use sunscreen on them DAILY. Well we were out about 20 mins this morning. Then I went out for less then a hour while the kids were napping. I was trying on my new dress from Kohl's and noticed how pink I am WTF. Just on my shoulders. O well taking a day off tomorrow I guess.