Are you disappointed with the results of your eating and training, are you claiming that you gained weight despite reducing calorie intake, or is there some third option I'm missing?

I also gain weight when I eat more and train, what's the confusing bit here?

The first. People said "eat less" and it didn't work. People said "train more" and it didn't work. Then people said "Duh, you gotta do both at the same time!" which is obviously not sustainably possible.

Based on your other posts, you're saying "it didn't work" when you actually mean "I didn't do it".

It's not sustainable to maintain a calorie deficit indefinitely. No-one claims that. That would be anorexia.

What is sustainable is to eat in a calorie deficit for a period of time until you reach a weight you're happy with and then maintain.

The problem for me was I was 300lbs. That's a really long time to run a deficit until I reach a weight I'm happy with. Took me nearly 2 years last time.

I think what you're describing is probably accurate for reasonably lean people trying to cut 10lbs. But for the severely obese (I briefly hit morbidly, in my case) that strategy doesn't help very much. Getting from 300 to 290lbs isn't nothing, but it's not enough.

I believe that you only get to severe obesity by something being seriously wrong with your metabolism. Therefore you need to identify that issue and fix it, probably with some pretty severe intervention, to get back to healthy.

So it took you two years to get to a weight that you were happy with by eating in a deficit. I assume you don't mean that it took two years to drop 10lbs. It sounds as if you identified the problem and fixed it! You lost the weight! What happened next?

Having done that for two years, why was it unsustainable to eat at maintenance from then on? You felt hungry? Lost interest? I lose interest in goals all of the time. But what happened?

Yea I dropped about 100lbs. Not exactly sure cause I never weighed myself at my heaviest. I was living abroad at the time and started keto and from then on the weight just melted off.

I wasn't even doing anything - just eating keto to satiety every day. Then I moved back to the US and slowly began gaining it all back (also over about 2 years).

I tried various things to slow down or reverse the gain, including lifting, other methods of working out, dieting more or harder.. nothing worked. Until this :) With the heavy cream. Down 45lbs again so far. Yay!