i'm addicted to chips, especially cheetos, help me...

i'm trying to quit those for so long but soon i fall again back to the bad habit. And i can never eat just a few, it has to be the whole pack.
The thing is i'm generally eating healthy only to spoil my diet with these shit. I eat about 2-3-4 packages a week though i cannot be very specific. what to do? i manage to go without for sometime but then i fell back at it. I've managed to quit smoking almost a year now, but cheetos i find it even harder!!!! isn't it crazy..