Fishing Sponsor please help!!!!!?

Hi, I'm 13 years old and on the fishing team in my town. I am one of the two girls on my team. I am also the secretary and treasurer. We have a boy who is sponsored by Boat Boys on the team as well. I have won tournaments and i would really love to get a sponsor. I am a fishing fanatic, I fish ALL the time... I have a amazing personality i'm really good at talking to large groups of people, im competitive, strong, nice, caring, fun, personable, talkative, and good at convincing people of stuff. I know i could go far in fishing and I would be able to get people to buy my sponsors stuff, because I know that when people see someone who is fishing with a certain bait and is saying to go try it they will go and buy it. So i can help to increase profit of a company. I am seriously trying my hardest to find a sponsor. I will be going to state in a couple of months to compete and hopefully win. So, if you have any ideas on who could sponsor me or how to get a sponsor please let me know... I was thinking about asking Boat Boys but what am i suppose to tell them and if I write a letter what do I include in it??? THANKS!!!!!!!!!!!!!!