Read questions asked and answered by other skiers who have done special camps and even spoke with professionals like Monte Mier. You won't want to miss this site. Beginners I would highly recommend at least a year of lessons before you join the ski team. The more experience the better. Most people think that you are only a good skier if you start young, but you can start at any age.
Skiing is different from any sport.
You are on a team, but victory is all up to you. It takes a long time to master a run. Start at the green circle runs and work at your own pace. I wouldn't try a black diamond untill you've skied at least a year and our competely comfortable with all the different blue square runs. Once you have gotten really good at skiing and want to join a team you should probably start with a junior team before starting high school.