Morbid Obesity. Power but i lack it.

I am a obese person. I get cravings for tasty food everytime i think of eating. I eat alot of high calorie food. I dont exercise. I dont like nutritious foods..basically i eat food that taste well and that are not healthy..nd also i eat outside food alot. Before 4years i didnt have this habbit of eating outside then also i was a little overweight but in these four years i have started eating alot outside during my college life and i also have started eating chicken and i eat it alot now. And since after staring chicken my weight has increased drastically from 90kgs to 116kgs. Now i just have cravings for tasty food i get bored with regular home made meals and i eat them in big quantities. Please help me i wanna look good bt i cant..its abt having a strong will power but i lack it.