I hope you coped with day 4.
The food diary can be a big ask for some people.
Day 4, the video!!
The lemon juice thing is One way of stimulating CCK (https://en.wikipedia.org/wiki/Cholecystokinin) it creates powerful feelings of “satiety”. CCK is released in the small intestine and carried to the brain where it makes you feel that you have “had enough”. For some people this system doesn’t work efficiently.