My best to you, Stu. You also made my prayer list.
With regard to lifestyle changes that result in losing weight, you need to remember only two things. Fewer calories ingested plus more energy burned will result in weight loss. Don't try diets that make you feel deprived. Eat your favorite healthy foods. Eat them in moderation. Try some new healthy foods. You may find some new favorites. And exercise in healthy ways.
Here is what works for me. Portion control for the first helping. You may have to wean yourself to the reduced portion. Then clear up the dishes and such. Now set the timer for 20 minutes. If at that time you are still hungry, you may have a second helping. For me that is usually too much trouble!
Start drinking lots of clear water. When I had kidney stones, I learned that the kidneys are the sewage disposal plant of the body. Sewage disposal plants needs lots of clear water to function properly. Ridding your body of unwanted fat needs a fully functioning sewage disposal plant. Yes, you have to go to the bathroom more often. Take that a sign of success!
And, yes, it does cost more to eat healthy, but not as much as being sick costs. Not to mention, because you already did, the cost to your loved ones when you are down for the count.
These are things to think about when you consider someone's diet formula.
You are a special guy on this forum. Accept our expressions of care and concern in that context.
Now, that Thanksgiving is over and I can almost snap my britches together at the waist, and before the Christmas food tempts me further, I need to go look for my timer. Every hour for a full glass of water, and twenty minutes after my first helping. I need to visit that place where my clothes hang on me because I've lost weight.