more power to you for giving it a shot but considering the circumstances and the way you described them, i would say dont waste your time. Even if you do make the team odds are you wont play much, unless youre a lot better then you described/then you think, and you will just be going to practice and it will suck.
I played my first three years, hated the coaches, ran track my senior year. I had loads of more fun running track in one year then i did playing baseball all three years combined. If you have any physical ability what so ever, grab a couple of your friends and go run track. Find out if your a runner or a thrower and just work hard at what ever event you do. Thats whats great about track. (Running atleast) It isnt necessarily talent. Its all about who works the hardest at practice and in the off season.