So my little sister who is 18 just recently got engaged last month. I have been happy for her and supporting her in every way I know how because no one else in the family is. They are all irritated that she is only 18, jobless, and has only been with her FH for 13 months. The whole family also thinks she should respectfully wait for me to get married as I was engaged first and am also the oldest daughter in the family. (They are very much into tradition.) She just now came down stairs all excited that her and her FH have chosen a date. She decided she wants it on June 22nd. TWO weeks before my wedding. I am absolutely P***ED. I have no idea what to even say to her. All I could do was walk away. How do I approach her about this? Is it wrong that I want to scream at her and tell her she needs to change the date? Should I just cool down, wait, and then tell her that she needs to change it? Or should I just let it be? Ugh I am SO MAD.