No, it's not what you think.
We think we're self conscious when we're really self judgmental and self critical.
Being self conscious means being conscious of self.
When you're conscious, you're aware.
When you have awareness, you are able to talk to the voice inside your head instead of lyssten to it.
When the voice inside your head says "you're not good enough," you're able to talk back to it and say, "yes I am."