Confidence comes from within and as long as you are putting forth a respectable effort to take good care of yourself, you should feel confident about that path.
“All my ex-girlfriends or wives are all kind of great friends and I've never understood somebody who can live with somebody for five or six years and then not like them.”
“But He Himself hath sealed your sufferings, and their thus saying condemns God, and His sealing condemns them.”