I agree with Michael. You have to be accountable and honest with yourself.
You have made the first step and admitted the grazing.
You have to increase your workouts.
I have noticed that the people that are successful do just that.
They are accountable for there food intake and they burn the equivalent to half of what they consume.
Good luck to you. You had the surgery cause you have the desire, now you just have to have the will to follow through and use the tool you have.
It is very hard. Im no pro just 6 weeks out. I just want to succeed and I know you do too.