Is Quarterback the right position for me?

I am 19 years old, 5'8, 150 and I plan on attending the AFL arena football tryouts in a few years. I would like tryout for Quarterback, I have really no organized experience, I didnt play in school, because I was overweight, but when I graduated I decided to drop about 40 pounds to become more athletic. Everytime I have played games with people, they always tell me that I can throw good. I believe my accuarcy is pretty good, I can throw good off the run from either side, but I cant really sling it. I can throw from 40-45 yards, so I try to make up for it with good precsion throws from 20-25 yards. I have pretty good football IQ to never played organized ball. I can run a 4:93 40 yard dash, a 4:88 shuttle, and a 28 in Vertical, just to give a little more athletic info. I truly love the game, I usually lift 4x week, while working full time. The tryouts dont call for any true experience so I believe this is my only shot to play. I understand that I am undersized, What can I do to improve?