You sound a lot like me. Get yelled at, grab a burger and fries. Stress eater. Depression eater.
First, a coach that has no empathy is not going to help you with this because you will run from her office and eat bad food. This is not healthy, and like me, it might be what helped get you in this position in the first place.
YOU are more important than what that coach says, or how she says it. My experience with my coach has been very good, but I am trying to lose weight so I can safely go through open heart surgery. When I lost 30lbs and went back to the surgeon, only to have him say very bluntly (and meanly in my state of mind) "Not good enough. Lose 30 more" What do you think I did? I believe it was fried chicken that day.
So, number one, YOU need to change your mind set. Food is not going to solve the problem, and in fact is making it worse. I have (not that it was easy to do) adopted a "Screw you, watch this!" attitude about my weight loss and the doubters.
I have a lot of health issues that even on IP I'm not a 3lb a week loser. I'm thrilled when I reach 2lb a week, and pat myself on the back even if it's only 1 lb. It's difficult to stay totally on plan when the scale moves so slowly.
You can do this diet without a coach. If you want to use IP products, I found a website that carries all the IP products and doesn't charge shipping.
www.plainprotein.com And the threads for alternative products is very good. I like Health Smart and a few Wonder Slim products. Syntrax Nectar is good too. (and all of these are considerably cheaper than IP)
The biggest reason I started IP was that I thought I needed to have someone to answer to each week. I would feel too ashamed to admit to being bad, therefore I wouldn't be bad. What I realize now that I'm on plan for almost 6 weeks, the urge to cheat is pretty much gone. What I know now is that I answer to my scale every single morning. I don't wait for my weigh ins because I'm too much of a control freak for that. I have a piece of paper taped to my bathroom wall and I record my weight on there daily. My family can see it, but no one else needs to.
I think what you need to do is try this on your own if your coach upsets you to the point of running to the nearest bad thing you can find and eating it. Use the IP products or the alternatives. Follow the IP plan that you got from your coach. I have taped my sheets to the kitchen cabinets, so I see them every time I'm in there. Especially the DO NOT EAT list.
And do remember, a glass of wine can send you OUT of ketosis, therefore you're only hurting yourself. McDonalds will send you out of ketosis, so you're only hurting yourself. You need to decide that the weight loss is more important than having that cheat. If you are not in ketosis, you are literally wasting your money. It takes 2-3 days for you to get back into ketosis after you fall out by having that one bad thing.
Don't give up on yourself. But moving on to a different way is not horrible. Find what works for you. Just remember. If you want to do this diet, no matter how you do it, if you only do it part way, it will not work.