It's a Sweet life

The book "It's a sweet life". Is based on a girl Serina Walker who goes threw a sweet life, a perfect one to the eyes of many. What many of her peers and friends don't relies is that Serina is actually not having a sweet life and how she copes is she becomes a mysterious blogger who exposes every ones secrets . Will she ever be found out ? Will she ever tell the truth about her life? or will Serina lose everything ?