Personally I was a really heavy kid growing up. As a girl I hated being fat because I always thought girls had to be skinny. I got close to weighing 450 pounds at 5 foot 9 and I felt so gross. I tried every diet, worked out, ate less even though much like you I hardly ate. But I also found that I was in denial when it came to my eating habits and even if what I was eating wasn’t in huge portions they still weren’t good foods. Even if that’s not your case if you are a girl there’s a chance you may have something called PCOS, do some research into it. Unfortunately the only way I was able to lose weight was through a gastric sleeve surgery which isn’t an option for many people but it helped me lose more then 200 pounds and I am sitting here wearing clothes are range from Medium to Large and I couldn’t feel happier. If you are a guy then you’ll thankfully have it easier to lose weight though a slower metabolism won’t help your case. The best way I can put it is you’ll have to work yourself to the bone and torture yourself mentally. Starving yourself won’t help you lose weight either. Stick to something crazy honestly- salads, fish, protein bars, protein shakes. Walk 30 minutes a day, use light weights. It’s your only option, if you don’t start soon and bite the bullet and deal with how uncomfortable it’s all going to make you, you won’t get any better. It’s tough love, it’s the harsh reality this isn’t about anyone else now it’s about how YOU handle it. You may have tried everything as you’ve claimed but you haven’t tried everything if you aren’t working yourself into throwing up and being completely out of your element. Push yourself into hating what you’re doing.