It's never too late Rita. You only missed one day. The consecration prayer period is 33 days long. You could just end with your last prayers on the day of consecration if you wished or just do the first 2 days of prayer today. The first 12 days are only a preparation period. The consecration is a big spiritual step. I would just make sure it is something you are ready to do. Of course you could always start the consecration today and read up on it, then if you decide you are not ready yet, you could wait.