John I heard that many times over my career. As a mentor of mine once said The commonest cause of obesity is caloric amnesia.
Sorry I see your pictures on here about your bargain buys plus the pictures of them cooked. They certainly don't look like 1-2 salads a day.
One problem is in Australia the cheaper the meat the higher the fat content so the higher the caloric intake.
Another major problem people have when trying to lose weight is expecting the results in a short time when to be really successful it takes a long time so that behaviour is changed for the long term.
I can use my own example now. I retired on 1/3/22. I determined I needed to finally really do something about my weight. So I cut down the amount I ate. Not a diet. I still ate the foods I wanted to just less. I still had a large glass of red wine or a G&T in the evening but didn't have any more. The second part was that I increased my exercise. In my case it was walking and I tried to keep above 10000 steps per day. That has been hard at times as I have severe spinal canal stenosis at L3/4. I also have had a peripheral neuropathy for 14 years with a lot of muscle atrophy. There is basically not a time when I am pain free. There are times when I struggle to get to 4000 steps a day. So I have to make up for it when feeling a bit better.
It has not been helped by my developing Atrial Fibrillation and despite being on anticoagulation have had 2 brain stem emboli causing more trouble with balance and some right sided weakness.
When I began this journey I set a target of 81Kg from a starting weight mid February of 115Kg. It took me ~ 18 months to reach that target. Since then my weight varies from 78 - 81Kg. If I eat more or walk less my weight goes up so I cut back a bit more on food and increase steps to get back on track. So that is what I mean by determination.