How to sue a photographer?

I was wondering if I could sue a photographer that revealed my real name to family and friends of mine. This has affected my character reference and my home life as they were adult photos. I did sign a model release with a stage name present, and he is now retaliating and sending people my real name including last name. what can i do about this? is this a big case or will it just result in him doing more harmful things like this.