14. Don’t blame it on your thyroid
Growing up, I had a friend with a thyroid problem. She was a bit hefty as a child, but, once the issue was discovered all that excess weight disappeared and never came back.
As promising as this sounds, she’s a minority. For most people, women being the more common case, this isn’t the issue. And, by trying to look for other reasons why you might not be the weight you’d like to be, you’re just giving yourself excuses. Be realistic but also be honest with yourself.