As an unmarried woman who had a terrible first mikvah experience (for conversion 1.0), I would very much like all of you to read this post by fellow Chavi about the mikvah! Please comment, anonymously or not!
Just Call Me Chaviva: The Mikvah Is Lost on Me.
A follow-up post on Redefining Rebbetzin: Reclaiming Mikvah, http://redefiningrebbetzin.wordpress.com/2010/12/20/reclaiming-mikvah/