Hi,
I think its better to reduce your intake of SUGAR, SUGAR makes
people gain weight and SUGAR comes in various form, avoid those
sugary coated food if possible lol.
And if possible, try not to eat any junk food(chips,
sweets...etc..) after 8.00pm.
Take fruits like apples when you are hungry.
HAVING A HEALTHY BODY KEEPS THE MIND FIT and most of all, you don't
need to accomodate yourself to fit the clothes.
MAKE wise SELECTIONS on the FOOD, rather than having to make
"selections" on CLOTHES.
Gd luck! 
