Replying to High school skier (help)

I'm a sophomore in high school, 15 yo. I've been skiing for about 7 years but i just recently (1 month) ago got into the park. I'm not that good i can do safety grabs and small rails but im wondering what level should i be at freeskiing wise. How good were you guys when you were a sophomore or 15? Im saving up for park skis right now. But what tricks should I be looking to stomp and how much should I be progressing. Sorry if this thread sucks im new. thanks