My sister did me real dirty...😒

Ok so I planned my baby shower last year at first I wanted it in March but then I changed it to April, I was gonna do it myself but she volunteered to the actual date was April 16 some weeks later she text me and says "oh I've things to do that day, plus another baby shower"....ok whatever I changed it to April 30 again this shower been planned since last year please explain why is it now April not one invite was sent out she had all the info first she asked for emails, then address, then emails again now phone numbers after all that she didn't send nothing and by the time she did she blamed the people I invited saying "I reached out but I didn't get a response from your people's" mind you guys I've people from different states that's coming down different towns that's at least 6-8hr drive but you gonna do someone else shower but not mines what makes me mad is she volunteered I never asked her she took something from me I can't get back knowing this is my first baby shower something that I wanted the grace of God kept me from calling the bitch and cursing her out cause my mouth has no off button when I'm on edge and she didn't even apologize to me nor the father