Try to become a pitcher on your senior year is maybe late and even if you have been cut from the team last year because you did not have a good arm... Maybe get into the game at 17 when you stop playing at 14 is a hard thing to do and more when you are a mid player. Yes you want to play but high school season starts soon. Did you work out in gym and practice a lil'? Because it's great to have some dream but you have to work for! BUT ... NOTHING IS IMPOSSIBLE and if you're a left handed and IF you have a good bat and a strong body you can try to first base... you don't need a very good arm and more often in youth baseball the 1st baseman is a player without any positions but a good hitter.
You can try here but don't forget you have to work hard for your dream...
Franck
PS if you are interested since junior yr... why did you havent play in a summer team to get back into the game and not have to do it during the winter...???