Being mindful of what I consume

I am scared that I will not only engage in mindless eating but also enjoy the mindless eating.  I am scared of gaining even more weight than I have before.  I have not hit my stride sort of speak.  I need help with being mindful of my eating.  I am a diabetic who has eaten the wrong foods.  My account is 1500-1800, yet I have overdrawn days in a row.  I have not tried.  I need help.