Comfort eating is an eating disorder and comes from a mental health issue it cannot be dealt with just by the usual advice re diet and exercise! Do not beat yourself up about being over weight because of misery or depression instead try to get some help for the causes of it and to learn other stress coping mechanisms. I feel so sorry for you as people are understanding of weight loss eating disorders but tend to assume that comfort eating is just an excuse to pig out! Research has shown that certain foods release seratonin (the happy hormone) and this makes people more likely to comfort eat these foods for obvious reasons. Get the help you need to tackle your issues then the ability to loose weight will come.
Anger management!!! Help needed.