TIFU by calling my Ex

Last night after a meeting with my Lawyer to discuss a civil matter I filed against the local hospital staff for malpractice, I called my ex from the waiting room phone and when she picked up, we spoke briefly and she said she was with her mother on a walk. I responded immediately with, " I just wanted to call and let you know how much of a C**t you and your mother are, and how utterly despicable your social and interpersonal relationship skills are, and I'd like to add that both of you should be ashamed for the way you carry yourselves and behave on a daily basis. You both set very bad examples as adult women, and neither of you have any concept of acknowledgement or self realization, let alone conflict resolution. Take care now." And promptly hung up. TL; DR I don't really feel bad for the things I said, but I realize that it didn't serve me or improve my situation to give her or her mother that much energy.