hmmm...I don't think your only problems are related to dieting Bjay
It will be tough but you either do it for yourself or you don't do it. Start with something small like 2 litres of water a day then a piece of fruit a day (or similar things) try to make the healthier dinner options. Find out how many calories you need to sustain your body weight and aim a little lower, once you add in exercise the deficit equals your loss
You don't need to be 100% perfect so even if you eat a little bad if your calories aren't exceeding your output you should be on your way.