Parents help please! my grad ceremony is tomorrow and I really don't want to go! really dreading this!!?

You should go and show how grateful you are that you live in a country where you can get an education. Be proud and happy for your sister. Take lots of pictures and enjoy the day. Feeling like crap is something you have decided to do. So change your mind and decide to be happy! Have a plan to talk to all the guests and ask them questions and generally be friendly.