I guess you will have to consider why you are changing your name, and what name better suits that purpose. There is a historical precedent for changing one's own name, but it has tended to be purposeful rather than arbitrary.
"Like arrows in the hands of a warrior are sons born in one's youth." Ps. 127:4JoHannah Jubilee, BenJudah Gabriel, Aaron Josiah, Jordan Uriah, Maranatha Nissiah, (Anastasia Nike, 1992-1992), Jeshua David, Shiloh Joshana, Elijah Daniel, Hezekiah Nathaniel, Zephaniah Joseph