Help!!!..

Hi All
Please help! I am 20 years old, and im a size 16-18 in wasit! (I really would like to get some weight off) But i cant help my self but snack all the time! Unfortunatly i have just bought a house and cant afford to go to the gym, and i do no exercise at all!
Has any one got any ideas where i could start, i have tried all kinds of diets (like weightwatchers, ceral diets etc) and i find they dont work or i am to busy to keep track! I have also tried taking some tablets! but i forget to take them! :-( Im now very paranoid as summer is almost on its way, and i feel that my fiance doesnt like how i look.
PLEASE HELP ME!!!!!!
Thanks
Jackie (UK)
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