Need suggestions

Petrolina • 2 Oct Princesses, 1 Feb Prince and 1 Chemical

Im currently trying to go on my weight loss journey. Im struggling with thyroid issues. But nothing prescribed for it. I was looking for a waist trainer that is like shorts but all I find is waist slimmers and I know they are not the same. Any suggestions. As well as is Keto good for those with Thyroid issues? The main area I'm focused on is my belly and arms.