Can I do Kickboxing even though im VERY overweight?

I'm very overweight. Obese. 270 pounds, 5'4, 20 year old female. I really want to get back into shape, so I wanna start a kickboxing cl. Am I too out of shape and over weight to do kickboxing? Also, if I were to do kickboxing, I was thinking of going to a Tiger Schulmann's right by me. Is that a good place to go?