If you ate way more before, you probably need more. I looked at the recommended amount of calories in calculators myself and I never had any inclination to follow those itsy-bitsy numbers. My metabolism is quicker than the statistical average, fortunately.
I use a page for tracking but I totally ignore its guesstimation or limits… I use my own experiences - and I am very patient.
I don’t know what could help you but if you can, try elimination, it sounds a good idea to figure out what’s the problem. In my case, typically carbs are the problem, not certain items. It’s much better since I stopped eating vegetables (except in tiny amounts, some of them are so good with meat and eggs or inavoidable because not always I am the cook) and nuts (sometimes I eat some but never when I have enough meat, they aren’t needed then). If you can, try it, maybe it’s not for you but maybe it solves your problems, who knows? I am very glad I was super brave and did it, I didn’t understand myself, it was surreal but useful. Many people have difficulties in the beginning though. I feel better eating less carbs, I just couldn’t do it before. Some of us need to be ready for the crazy idea of almost no vegetables… I was a HUGE vegetable lover (except most green leaves, I didn’t eat them. I thought it unlucky for keto but it’s no problem on carnivore
or almost carnivore, I probably will do that a lot as
I don’t need elimination of plants, just extreme low-carb and it doesn’t allow a significant amount of plants).
If it’s too much for you, eliminate only one group. Dairy or just dairy with lactose, nuts, whatever you think might be the problem. A short carnivore trial is a logical thought for many of us because you eliminate lots of potential problems and you still can eat great food and it worked well for many people this far. But if it’s not realistic, do smaller steps.
Or just eat more, I would feel pretty bad eating this little every day… But you wrote you have problems with eating enough using normal food sometimes… Do you really feel satiated, getting enough energy or you fill up yourself with a meal with big volume and don’t allow more fat or protein due to your macros? I can just guess here. Some extra fat may be very different from a proper fatty protein meal… I would try different food, we are all different and an app can’t tell your ideal macros. Some people need more fat, some more protein… Or just different food items.