how do i spell and say my name in spanish
In Spanish, names are usually the same as English. There are some exceptions, such as "John-->Juan", "Michael-->Miguel", "Theresa-->Teresa", "Mary/Maria-->María", etc. Yours would be the same, as there is no equivalent for "Chelsey" in Spanish. "Anne" might become "Ana."
But that aside, Cleppie has a point. It's not a good idea to put your full name on a website online, where anyone who wants to can just see it...