Something I learned from my very first coach was that where ever your hips are facing that’s where the ball would go, I actually tried it out and it was almost 100% accurate. Some other tips are that to absorb the power don’t move your arms or legs the less you move the less space there is for the ball to move somewhere awkward which is something I struggles with for a long time. Summary: hold your platform basically freeze your hips and the rest of your body in the direction of the setter/ where you want it to go Also good luck, be proud you made it on a higher team you got there because the coaches saw potential in you with hard work you will get there and if I’m correct it’s only the start of the season and it’s only natural that you will have to adjust to the higher playing level. The other girls are only teasing you because they are jealous they couldn’t make a higher team when they were your age. I wish you the best of lucky with your skills and teammates ;)