Do you think ill make 9th grade cheer?

I know how to do every jump, and i do them really good. and i know how to do my cartwheel and roundoff. should i go back to cheer tumbling classes and learn more tumbling? im going into eigth grade and tryouts are near march. i can learn things really fast and im very flexible. i want to know how to to my backhandspring and tuck before tryouts. but would tumbling help? at my school, coaches are real strict, and i smile and im tight, high jumps, great cartwheel and roundoff, loud voice. but i didnt make it. so do you think ill make 9th grade cheer if i have tumbling?