I am 6'2" and a few years ago I had gotten to 450 lbs.! I wore 6X shirts and 64 pants. I had high BP, high cholesterol, sleep apnea, back and knee pain and erosive esphagitis and episodes of irregular heart rhythm. I couldn't walk around the block. My blood sugar was at the borderline of Type 2 Diabetes. I realized one day when putting on my size 64 pants, that were getting a bit snug, that I had to chose between dying soon or changing my lifestyle, such as it was. I did much the same thing as you. I cut out fried foods, snack junk and fast food burgers and pizza, etc. I measured and weighed portions and had small snacks of high protein and fiber/ low fat foods, ie, tuna, whole grain bread, apples, carrots, etc. I stayed out of fast food places. I gave up all sugared drinks and sugar in general. A sweet treat became a banana once in a while. I started to walk as I lost enough to actually walk more than a few feet.
That was 4 years ago and I now stay around 220. I wear XL shirts and 38 pants. I can buy clostes in normal stores and don't have to go to big & tall places. I ride my bike and canoe most days each week and belong to a city rec center and do some light weight work 3X week. I actually enjoy doing these things and don't feel right if I miss a day. My mental state is completely changed. I no longer have the high BP, high cholesterol, sleep apnea, GERD, back and knee pain, irregular heart rhythms and my fasting blood sugar stays well under 100, usually under 90. I feel like a new person. I must say that keeping it off can be more of a challenge that losing it. It takes lots of work to not slip back to the old ways.
I went to a gun show last Sunday. I don't think I have ever seen so many guys my age or older and some younger, I'm 56, that were very overweight and limping on canes or riding in motorized scooters. It was shocking. Most of the young folks were also heavy to morbidly obese. As a nation we are killing ourselves eating this crap and sitting on our...well, you know. Congratulations to you and if a support thread developes for this, count me in!