if only....

Ha. Whilst looking at boot camp websites I used a bmi calculator. It popped up and said my bmi was 0! Ha if only, right? On that note I am thinking of either rejoining my gym...doing bootcamp, boxing classed or getting a PT. I just want to get skinny and feel energized! !! Any advice? ?? Have any of you lovelies had any success with the above? Fatter than ever. Xoxo pix.