Anxiety about cake for my birthday!

My birthday is on Sunday and I am cooking dinner for my son, his family, my daughter and her children who will be here visiting from Texas, my step daughter and her 2 adult children and my step son and his significant other, and of course my husband. I decided to do this so my step children would get to see my daughter and her kids. I wasn't sure they would come because we live an hour and a half away, but I am happy that they are coming. I am getting a little anxious though because I decided to eat a slice of cake, and I hope that it doesn't send me into a tail spin!