No... there really aren't.
If you are saved by the blood of Christ, and you are walking around feeling like a loser, then you seriously need to get into the scripture and reevaluate your life, and your worth, by God's standards.
You need to stop using man's standards, and stop using your own standards, and start using God's standards.
If you think you're a loser:
A. You are using the world's standard's to measure yourself, instead of God's standards
B. You have absolutely no concept of your true value