The way I understand it, one of the best strategies known is to force feed yourself for about two weeks at the beginning. Then stop forcing and eat only when hungry and until you're full. If you desire other foods it's a hunger signal. If the meat doesn't taste good it's fullness signal. If the meat doesn't taste good but you have hunger pangs anyway it's wrong fat to protein ratio. Most likely not enough fat.

Don't force-fast. Naturally not eating when you don't feel hungry is fine. If you do feel hungry it's not OK to skip meal. And about twice a year make a force feed day to double check if your body has sufficient nutrition. If it does you wil lnaturally skip next meal. If not you'll be hungry again.

This should give you baseline of what true carnivore is for you. Once you get used to it you can consider adding some plants. One by one, so you understand what exactly they are doing to you. I'm not "religious perfectionist", I do eat plants occasionally but I know well what I'm getting into. So I totally get that you want to eat other things. Just knowing which are horrible and which not is very useful. My guess is keto could work for you great as a base and adding other stuff from time to time. I think that long enough recovery period allows for some plants in sensible amounts. It's just chronic eating of plants that is horribly destructive.

Regarding Dr. Berry, he's a married man with kids, job, a youtube channel and a farm. I'm not surprised he doesn't have much time to comment on posts of people he doesn't even know. It's good enough that he reads them I got a few likes from him.