Largely great post. I do have a couple of nitpicks though. Are you saying peanut butter is a carb? Put on some good whole grain bread, its actually a great healthy snack. Expecting people used to our flavor overloaded modern foods to be able to go to eating skinless chicken breast is, in my opinion, absurd and showing a serious lack of understanding why its so damn hard to make such a transition (yes, it is big enough that an average person would say they'd rather die than to switch to that level of healthy eating; something I've heard a lot of people say). I have actually done that myself, at one point I ate incredibly healthy - basically no sweets, no fast foods, baked fish fillets, straight tuna out of cans after workout, lean ham (underrated for healthy food I think, but I find chicken and turkey to be less palatable), plain potatoes, measured out my cereal, etc but I was goddamn miserable and outright hated thinking about food (and you realize how integral food is to social gatherings, making those miserable as well - to this day I'm a loner when it comes to eating). I'm also not sure that going on such a crash diet change is healthy either. It might be warranted in the OP's case, but I'd rather leave that up to a doctor (that yes he needs to be going to ASAP).
But I agree, make changes. Get off your but, get moving. Eat better. Replace chips and fries with baked potatoes (with toppings, and gradually reduce the toppings over time). Replace candy with some fruit (seriously, bananas are pretty damn cheap, as are other fruits in season, and you can buy frozen, and put in little containers and let thaw out over night in the fridge). Cut back on the pop any way you can (go cold turkey if that works). Load up on veggies. Get peanuts (they're cheap and filling, and if you have to crack shells it'll help limit how quickly you eat while also burning some calories). Drink lots of water. Prepare meals instead of eating conveniently. Find some good hearty whole gran bread, put some honey on it for a snack.
Another good tip is catalogue all the food you eat. It'll help you realize how much you're eating, how bad you're eating, and it'll take effort and time (that you might otherwise be mindlessly eating).
Find distractions (but don't just substitute one unhealthy thing for another; gaming is good but you need to be active some).
Call up Rossman (just not for 8 hours a day )
Seek support groups. I don't give a shit if you're a furry that likes being rode like a horse, there are people out there that wouldn't put you down for that.
Peanut Butter is about 3g of carbs per tbsp. Bread and jelly just make it worse. Subbing out fries for a baked potato is the lesser of two evils since there are almost 40g of carbs in a baked potato before you even add anything to it. Peanuts have 24g of carbs per cup.
The OP needs to hate food, or at least sugar and carbs. It's like heroin to him. It's his drug that he abuses to make himself feel temporarily better and ignore his problems, if he is anything like me. He probably eats when he doesn't even feel hungry. To the point that he sometimes makes himself sick. I do.
When you create large amounts of sugar in your blood by overeating the body responds by producing crazy amounts of insulin to compensate. Do it once in awhile and you are fine. Do it daily, combine it with lack of exercise, and you get type 2 diabetes where the body stops responding to the insulin and the cells can't absorb any of the glucose for energy. This compounds over time and results in crazy high blood sugar levels that make you feel tired and struggle to stay awake. It also triggers your body's craving for more food, specifically carbs.
Sure, a small change in diet is good, but the OP is drowning. He needs drastic diet changes and to see a doctor now. Eating a baked potato is not the answer. Fuck breads, whole grain and otherwise. Any drink with more than zero calories is also absolutely out.
Yesterday I skipped breakfast and had a single hot dog with mustard for lunch. Not three hot dogs, or a giant sausage dog with chili and cheese with a side of fries and 64oz of soda. When I got home I made Cajun style dirty rice with beans and ground beef. But I stopped myself at one normal sized bowl, not the three bowls I would have had in the past. This is plenty of food and calories for me. Then I had to distract myself or I knew I would continue to eat. I went down to the lake and fished for a few hours before bed. Anything to ignore my heroin (food) habit.
We're not talking about shaving a few pounds off of the OP, we're talking about life vs losing limbs and/or stroking out and eventual death. He's not pre-diabetic. From what he describes it's the same thing I went through in 2000 when I was diagnosed: he's been diabetic for some time and the 2L of soda per day, plus food, has his blood glucose levels off the chart.
His body can no longer even handle the normal levels of sugar/carbs that a healthy person might. Even something like the sugar in carrots could spike him if he eats enough. A summertime peach is out. A bagel and cream cheese is out. At least for now.
Once he gets treatment and a doctor puts him on meds, and if he is getting enough exercise, then he MAY be able to reintroduce some of these foods to his diet, but he's damaged his body to the point he can no longer eat whatever he wants to. PB&J is definitely out for now.
If you don't have health insurance that will cover the supplies, here is a meter and 50 strips at Walmart for less than $20:
https://www.walmart.com/ip/ReliOn-Prime-Blood-Glucose-Monitoring-System-Blue/20752266
https://www.walmart.com/ip/ReliOn-Prime-Blood-Glucose-Test-strips-50-ct/20752265
Go. Now. Get thee to a doctor. All the pity, advice and well-wishes in the world won't save you if you do nothing. Good luck.