Ya try a carnivore diet first. Here's a good example of one: beef, butter, bacon, eggs, salt, and water. Here's another: beef, butter, salt, and water. So basically that means no plants in any of these diets.

Slowly transition within a few weeks. Start by adding those foods in and slowly eliminating everything that's plant related and/or processed out. After that slow transition, try eating a carnivore diet for about 30 to 90 days as a challenge.

I had chronic depression, anxiety, insomnia, obesity, and the diet worked for me. I've heard loads of stories of it working for all sorts of things. I dunno if it would do the same for your case but it's worth a try.