You don't lose weight by eating, you lose weight by not eating.
Go for a fast, either a complete fast for many days or do OMAD (one meal a day). Fasting is known as a healing technique for millennia so don't believe that it is unhealthy.
Avoid sugar and processed carbs because you'll get hungry again faster. Eat animal fat/meat and plant fat to feel satiated for a long time.
I am not fat but I am doing OMAD from time to time just to feel better. This will also cure every form of pre-diabeetis that most fatties have.
As a general rule of thumb, any diet advice from someone who uses the term "fatties" is probably best to ignore for safety sake.
As for fasting being a known healing technique for millennia ... (as in thousands of years) I really have to say 
For thousands of years, beginning with philosophers like Hippocrates, Socrates and Plato, fasting was recommended for health reasons. The Bible writes that Moses and Jesus fasted for 40 days for spiritual renewal.
For some understanding between sugar/carbs and insulin/obesity response: