Your worth does not depend on your accomplishments nor what others think about you. It is based on how God sees you in Christ. It says in 2 Corinthians 5:21, 'God made him who had no sin to be sin for us, so that in him we might become the righteousness of God.'
You are God's righteousness in Christ. This is the identity which cannot be shaken nor taken away from you. It is firm and unending. It doesn't increase nor decrease. It does not depend on your performance but on what Christ did.