On another forum, I had the name of my weight loss journal be fit by 50, but then when I achieved my goals, and was over 50 I needed a new name so I chose FitForever. I don't mind if you use it, since I think that is what you are trying to convey by referencing your age in your screename. BTW, my screen name, with the word girl in it, does not reveal my age at all, quite the opposite, here I think I am trying to convey how young I feel by using the word girl.

I am curious why you feel your age needs to be so linked to your screen name.