Ok so im trying out for cheer in 4 days & i cant do a cartwheel or back stand or round off please help me ?

So im gonna be a freshman in high school , and since i went to a football game i saw the cheer squad and i loved it ! & but the problem i cant do cartwheels or back stand or round off , or back flip ? I know right then if i dont know how why iam trying out . Why ? because i i loved it & i wanna get involved in sports in high school , and its a really great sport please tell me , i mean help me . Iam very bubbly , w . a Sweet voice & can be really loud & always smiling Im also good at making cheers but not doing like they gymnastic stuff lol . HELP !