Recommendations for someone on Carnivor?

I have been on strict ketogenic carnivore diet for 3 years. I have high cortisol and almost all of the symptoms of hipothyroidism.

Someone recommended me Ray Pete. I learned about him What he says makes sense. I still eat a lot of meat. I eat 800gr 80/20 ground beef and 40gr of butter a day. But I modified my diet a little and added 500ml pasteurized milk, 500ml organic orange juice and 25gr raw honey.

It has been one month since I added carbs. I measure my stress levels and heart rate variability through my garmin watch but they didn't improve yet.

I don't want to lower my fat intake because currently my testosterone levels are high, my estrogen is very low and I like it that way.

So what do you recommend me to decrease my cortisol, improve low thyroid symptoms but still keep the testosterone high and estrogen low?