Switching from 2nd to shortstop?

Last year as a freshman, I played 2nd base on my high school varsity softball team. I started and only made 3 errors the whole season. This year my coach is considering moving me to shortstop. The only problem is my throws are not as strong as they can be. I'm not used to throwing hard for long distances because most of the time the throws are short from 2nd. I know how to play the position and am willing to practice hard. Does anyone have any suggestions on how to get used to the longer throw? 10 pts to the best answer!