In January of 2016, I had to go to the doctor because my legs were all nasty - split open- oozing fluids.
She told me she was sending me to the wound center to see if they could do anything.
I didn't like that idea & said so.
She gave me my other two options. #1 - go directly to the hospital and have my legs removed before gangrene set in. #2 - do nothing and die by my birthday in Feb.
Needless to say, I went to the wound center

.
At the time - I weighed a staggering 330 pounds. I was on oxygen 24x7 - due to COPD and pressure on my abdomen not allowing my diaphragm to do its job.
My waist was an enormous 58 plus inches.
After the ordeal of having my legs wrapped for two weeks - and the humiliation of having to have my wife wipe my ass & clean me off - I vowed to do something about it.
I got a membership to the local Natatorium - got my big fat ass out of bed and got in the water every morning at 5:30 am and "swam" (actually - for the first year it was pretty much treading water in a direction).
I also went on a strict 1800 calories a day diet. No sugar - if I could heal it - no soft drinks - only water & fruit juices.
I searched the internet for all sorts of substitutes to save calories. Things like habanero peppers instead of oranges. Did you know one habanero has more vitamin C than 4 medium oranges? For only 30 calories?
Dill pickles make a great low-calorie snack.
100% natural unfiltered apple cider vinegar - with "the mother" - can cleanse a ton of toxins out of your system. I drink a swig of it every other morning.
I bought a bicycle a year ago this past August & rode it between 7 and 29 miles - nearly every day the weather held. This year, since March, has been difficult to ride.
My pool sessions finally paid off & I got to the point I could actually swim on my back - real swimming - not treading water.
A year ago at this time, my weight was down to 217 pounds - a total loss of 113 pounds. Sadly, the Covid crap hit & my weight edged up again to its present 252 pounds.
Did I mention I worked my way off the oxygen? Yeah - my breathing returned to near normal levels.
I had done it - done the improbable - gone from the deathbed to actually consider running an Iron Man Triathalon.
I managed to do 2.4 miles in the pool when my weight was at it's lowest.
Those saying there's no such thing as a "magic diet" are dead on. The simple truth is - you just have to take in less calories than you burn every day to lose weight.
Portion control - eliminate sugar as much as possible - exercise. Find something you like to do and do it. I always liked riding a bike and being in the water so that's an easy no brainer for me.
Good luck - find the foods you like that are good for you - take a multivitamin & find something physical you enjoy.