Weight loss does not make people happy. Or peaceful. Being thin does not address the emptiness that has no shape or weight or name. Even a wildly successful diet is a colossal failure because inside the new body is the same sinking heart.
Ask: is what I'm doing and thinking right now bringing me closer to myself or farther away? Opening my heart or closing it? You have a choice.
People come and go, pain comes and goes. But so does joy. And if our hearts are closed because we don't want to suffer, they won't be open enough to recognize the joy as it flies by.