Volleyball Help! Please if anyone plays volleyball please help me!?

Ok well its my first time trying out for my schools volleyball team. I have the right body for this sport i just need to get stronger and more in shape. Ive been exorcising but i don't know many exorcises. I have a conditioning tomorrow but im kinda scared cause these girls are so much bigger and fit and older and they have all played it before. I just need help please if you know anything i can do to get myself stronger for my tryouts please help me I don't wanna make a fool out of myself and not make it.