Believe me, I totally understand the shyness. Just take it one step at a time. Prepare as long, and as much as you feel you need to. Take every little bit of progress towards RP as an accomplishment. Don't get discouraged, and keep trying. You'll get it, slowly perhaps, but you will get it. Also know that you are not alone in your feelings of shyness.
Welcome to the site!
Welcome to the site!