I agree with Bishopcole, tape yourself,and be very truthful,with yourself, and you should be able to tell where you are.
I gave this same advise to my wife,it really helped her alot.She's not were she wants to be,but she's trying real hard,with the truth of were she is now.
I'de like to see us do a duet in the near future...
i'm modest too,i know i can hold my own,but i don't get big headed,because i know for who,and why i sing.