I have a huge problem with Keto. Just be careful with that. Carbs are an absolute necessity for me or I can get depressed...plus I just don't like eating the Keto way due to high fats.
If I try to cut below 150g of carbs per day I have lots of intrusive thoughts and my sleep is affected. Just me, though, and to be fair I've never stuck with it for more than a couple months. A lot of people do think it's helpful - I've tried Keto many times in the past and it's just not for me as far as mental health.