Planning on overeating

I am noticing my brain planning to overeat. I seem to cannot wait to go to the store to buy the food. I want to eat less or completely stop eating. I know that it sounds like I am out of control and giving my primal brain all the power, but it does feel like that, too. I feel scared when I am noticing it planning to overeat and feel like I don’t know if I can handle this/change anything.

How can I be in charge?