OK can you please help me because it would be great if you could!?

OK well I have 2 questions! First, I am on my mothers account and if you don't want to believe me, great for you! OK so my first question is, I have to make a poster on an athlete and I can't decide who I want to do! My first idea was tony romo but I really don't know! (I am a girl but I am kinda a tomboy!) I would LOVE to do Shawn Johnson since she's my role model but there has to be a book on her (no book =( ) and theres this mean girl who heard me say I was going to do her and now of course shes doing her! I want to do someone who nobody else will do so it's new info to them! And my other question is, I really want to be an athlete when I grow up! I love softball, volleyball, and basketball! I am really little for my age and the doctor says I am only going to be 5 '3 when I grow up and I really want to be a pro softball player! I know I can do it but I'm not that good! I have played since I was 7 (I am now almost 11) but I still am afraid to play catcher! And basketball too, i stink but I have played since i was 7 too! I am reading about Shannon Miller and how she played since she was little and I wish I did but I did dance when I was little instead! I need tips on how to be better at softball (like tips when im out in the field or up to bat!) I look up to Jennie Finch and I dream of one day going to the olympics but it's pretty hard! So who are some athletes I should do for my project and how can I get better at softball! Thanks so much! =)