I'm well aware of the concept of estimation, and I own a food scale. Even when you make things yourself you know that an egg is ~70 calories, 100g of flour is ~400 calories, etc. It isn't exactly rocket science.

Knowing how much of what to eat isn't the problem. It has never been the problem. The problem is actually sticking to that diet when your body is screaming at you to eat more, when the part of your mind that evolved to keep you from starving --which is what losing weight is, since your body literally has to eat itself-- starts playing tricks on you and conveniently forgetting that you ate earlier, and when your metabolism, which has been unavoidably and permanently damaged by the mere act of losing weight at all, requires that you eat substantially less than the daily average.

I'm really sick of people assuming I'm a moron because losing weight is difficult. Do you know what it is like to only eat one meal a day? To have to avoid all social functions at which free food might be present? To ensure that there is only ever enough food in your house for exactly one week of your caloric allotment of 1600/day?

Trust me, whatever parroted advice you're thinking of offering next, I've heard about it and tried it.

Well, this would then probably not work for you, but it worked for me. What helped me to lose weight was to still cook my own food from bought ingredients, and measure everything that I was eating for weight and calories. But mostly what I did was switch the type of food that I was making, and the ingredients I was using to things that were far less calorie dense, that worked for me. It does still suck to go to social events with plenty of food, because then I will totally eat it.

The solution to overeating at social events is to go vegan. Then you'll only snack on some cantaloupe.

Corn chips and salsa, pita chips and hummus, popcorn if it doesn't have butter, and since I live in a relatively liberal town vegan sweets are not even that rare at social gatherings.

I get everything you said but the eternally damaged metabolism. Don't have the source handy on mobile but from what I have read the difference between a so-called fast and slow metabolism is < 10%.

Food is absolutely addictive and we have so much available. Combine that with a car based and sedentary lifestyle and it's a huge problem. The only thing that has worked for me is being a lifelong runner and cyclist. Burn an extra 500 to 800 calories a day and most weight loss goals are much more attainable. I am trying to help my mom lose weight and when you are very overweight adding huge amounts of activity is very hard.

She seemingly also has a 'slow' metabolism but in reality she moves as little as possible. Whereas I am always wandering around doing things at top speed. Activity begets activity because it begins to hurt less to move.

Anyways, best of luck in your efforts.

Your sources about metabolism are wrong. I know because I've done base metabolic rate tests in uni (with one of those hoods) and have seen (repeatedly) that some people breathe out ~4k kcal per day and others only ~1.6k. This is at rest and at different times in the day.

Yes, I know what that is like. While I agree that is is occasionally excruciatingly hard to not eat when there is plenty of food available, it's not impossible for me. It has nothing to do with whether or not you're a moron - loads of people will be perfectly able to just not eat unless it's within a certain timeframe, as you've no doubt repeatedly read.