Do i have the right snowboarding size? Please help.?

I am only 13, shoe size is 8 1/2, im 5'2 1/2, and i weigh around 108lbs. My snowboard is about as tall as i am, maybe a centimeter taller. I dont know if its the right size. All im going to use it for is gliding down the hill. Am i going to have trouble turning or anything? or pushing it to the ski lift? Please help.