@Killer no offense taken.
I used a similar diet to noom; Optavia and got down to 250 lbs 3 years ago. It worked great for me in my prior job, but with my new job supporting sales and traveling i found it untenable to find a microwave to nuke a meal while out with customers etc.
It's taken me the last three years to gain the weight back. (i was 295 when I started Optavia). In the last 6 months i've been "playing" with my diet finding what works for me that is sustainable while traveling and found what I think is not the insta kill that optavia/noom give. BUT something that is sustainable that is leading to lb after lb, week after week.
For me what works is a type of Intermittent fasting. I do not eat breakfast on the road unless i've had a work out. And then it's a small bowl of oatmeal. I do not eat from the horrible for you, provided lunch and learn at the customers, i'll have a salad when sales does a followup to the l.a.l and dinner will be leaner meat and vegetation with only one or two drinks. At home i no longer eat breakfast, i'll have a much smaller lunch that I used to have, and i only eat a plate of food that my wife prepares for me, rather than what I'd dish myself. I actually have the easiest time when we boat, because i dont bring chips on board and I'm gluten sensitive so I cant eat any of the snacks people normally bring.
The biggest single thing I had to do was stop snacking. I'm HORRIBLE at resisting pringles cans. And I have three young boys who all need snacks.
I've also made the same mistake, trying to exercise the bad calories away. And you end up hurt very often. (sprained knee doing crossfit, injured rhomboid doing HIIT/BURN, tendonitis within weeks of returning to burn - etc.)
my high point was a decade ago at 360 lbs and 60" gut. I've got the stretch marks to prove it. (and the excess skin). My bil thinks that a tummy tuck would drop me the 30lbs i need to be healthier just from removing the skin.