I'm first going to address the AKA part of this discussion. I was in the military as a female. Any VA or gov't things that I have to fill out, I must put my AKA of orginal name in the blank. Any place you have prior records, you have to do the same to find them. That is one of the reasons I got a GED. I graduated high school as a female. Now I just check my legal GED box in my current name. My college is in my current name.
Second; for those of you who want #'s in your name or other silly things (forgive me but it made me mad). TG is a very serious lifetime decision. My name change is 34 yrs old. I am proud of my name and have done some good things in that name. It has been printed in papers, for public events, put on certificates of honor or recognition for civic duties that I performed as my current me. I have married with this name, and the marriage was not a trick, it was as honest as I could be. My wife was proud to carry the name.
The name you choose today, will live with you tomorrow. Male or female, use common sense. You will grow up and be something other than a TG. Use any stage name or screen name that you want; but think carefully about your 'real', rest of your life name.