first year accomodation

hey guys im applying for accom and ive put my first 2 preferences as woodward and kp single ensuite. im not too keen on sharing a twin room but thats really my only choice as the kensington ones are too expensive for me and i dont like the wilson house ones. what are the chances i get into a twin at kp and woodward rather than the singles and if anyone has any experience with sharing a twin room id love to hear about it cus i am scared lol thanks :-)