I don't know what to do anymore, it's driving me to the edge. One affects the other and it all goes round in a vicious circle until eventually, like now, I'm just fat and unhappy all of the time. I can't do it 
I've been morbidly obese for seven years now. I was a chubby kid and teenager too, have never known what it's like to be a healthy weight. Life is generally really uncomfortable - I hate summer because I get sweaty and sore, I can't cross my arms or legs because there's too much blubber in the way, I can't wear the things I like because they rarely come in my size, standing for long periods is painful, as is walking anywhere at pace. I feel like I'm the laughing stock of the general public whenever I go out and everyone in the office is watching what I eat and sniggering.
It's evenly distributed across my body so I think people tend to be surprised if I ever tell them what size I wear or how much I weigh as although I do look big I probably don't look morbidly obese big. Maybe that's just me kidding myself though, I dunno.
I'm really ashamed of my weight but I will tell you I'm only 5ft and a size 20/22 - I need to lose at least 10 stone, probably a little more to be safely within healthy range 
Does anyone have any tips for losing weight whilst dealing with depression? I have no energy or long-term motivation, recently I've struggled to get through a full week on any sort of diet. It just feels so difficult and insurmountable I want to cry every time I think about it.
TL;DR if you are or were morbidly obese and suffering with depression, what was it that flicked that switch in your brain for you to say enough is enough, I'm doing it for real this time ... and then actually DO IT?