Ughh helpp:(

I just turned 18 and have cellulite in the back of my legs, not a fat syomach just a little "pudgy" and i do hage hips... I weigh around 140-145 and am juzt wondering if my bodys going ti changenin any more ways because the last 3 yearz ive gained over 20 pounds and i dont diet bc the first couple of timws i did i crashed and burned and gaines more weighr as a result... Please help! I also have pcos but am taking medication to helo regukate me