Doctors opinion on fad diets

My story

I am the most self-conscious person about my body. Even at my smallest size I still felt fat. It would be easier to blame it on my childhood, my problems, stress, or any emotions. But, honestly, when I am happy- I eat. When I am sad- I eat. When I am depressed, I eat. So, what it really is, is that I love food.
I go on different diets and I use different products but I would give up because every time I call my myself to order, to start losing weight the healthy way. I always fail, dismally. I signed up for gym twice. Both  times I was dedicated for 2 - 3 months. After that I slacked. I become lazy and the monthly gym fee debit order notifications on my phone didn't motivate me either. It only hits me when I am around smaller people and I tower over them. When I am alone I am comfortable. But that is always the case with overweight people, we do not realise how big we are until it bad.
I can say that I lack the motivation and self-discipline to take my weight issues seriously.

Metabolism death foods - Dr. Oz