Ben Dampsey voted up Anonymous' answer 7/23/2014 I am so fat. I am 13 and I weigh 6 stone. Trying to slim for the holidays and so the guys will like me. Anyone have any tips to loose weight really really quickly without my parents noticing? PLEASE HELP!!! If I were you I would run everyday. If you have a hula hoop use it it will help with burning fat. I hope this helps :)