Personalizing

Anyone else have this problem? I feel like I take everything personal. For example, I'm at work and someone was rude to me on the phone. It will irritate me for much longer than it is even worth. But I can't seem to get around it. I closed my eyes, took a deep breath and recognized that I'm taking it personal. It helps, but what happens when I'm not strong enough to recognize it? Or when its much more intense than just a rude comment?