LOL nicknames are given to us... we can't really change 'em, even if we dont like 'em.
My real name's Mishma, but ever since a few friends started calling me Mimi, everyone seems to do the same. Starting from teachers... and ending with parents. It's "Mimi" all the way.
Though, for some odd reason, all [well, most] of the people I know have different names they address me by. Be it "Mishu, BG, Cake Chor, etc." π€£