My question would be about how often you're eating. I know you've tried a lot of things, but how long did you consistently do the same thing before trying something else? Gotta give things time to work. Changing things up every few days might be too much. If for no other reason, maybe just the stress of being so focused on it day after day is a hinderance.
I personally believe that we can be significantly slowed down by eating too often. We need to spend time in a fasted state and then go back to a fed state. When we are in the fed state, we really need to feed. Sometimes people try to eat such small amounts of food when it's time to eat. If you're doing fast/feast, you need the feast part. Otherwise it's just severe calorie restriction. Fill your belly up. Don't bother with lean meats. They will take up too much room without providing enough fat. Don't bother with fat bombs and faux keto foods. Eat good fatty meat as primary. Then if you want to have some veggies just make sure to load them with butter or coconut or olive oil. Make sure your olive oil is real if you're using that. Then don't eat again for 16-24 hours. No fat in coffee, no nibbles here or there. You don't want to enter the fed state again before it's time.
Get plenty of salt for sure and water whenever you're thirsty.
Then every few days, have a day when you eat more meals if you want. I tend to eat 2 meals on weekends and 1 during the week. Occasionally if I'm truly hungry, I respect that and have a second meal if I really feel like it's best. This honestly happens about once during the weekdays each week.
Maybe this would help. Maybe not. But if you decide to give it a go. Stick with it for a solid month before trying to change anything else. And respect real hunger signals. If you're pretty sure they aren't boredom or a need for sodium, listen to them.