I really can't help it, but I am really self-conscious.  I wish I didn't feel that way.
It's very common!  Maybe you're shy, unpleasant feelings of self-consciousness are associated with shyness.
Yeah, I am a little shy and definitely not by choice.  I can't help it.  What can I do to overcome this?
It could mean you have low self-esteem.  Why would that be?
I don't always think I am the smartest or have good confidence.  Maybe I should see a shrink?
Talking about it could be very helpful.  It's not your fault, some people are continually more self-conscious than others.
Oh!  So it may just be genetic than, right?
It could be, but even so it could hurt your ability to perform complext actions.  Getting help is a good idea!