If it makes you nervous, your are doing it right
So much truth in so few words! If you had never gone out of your comfort zone – which always makes you nervous – where would you be right now? You would not have made it through school, not gotten any job or friends, you would have achieved nothing.
In order to achieve anything, in order to grow as a human being you have to evolve constantly and that means getting out of your comfort zone. That makes you nervous and therefore being nervous about something means it is good to deal with it. So don’t chicken out and just get it over with!