If I was only racing locals, then its a whole different story. Believe me, when I came back this year, I had no expectations of doing well at all.
Looking at your history on the NBL site you have 23 races in. So at least 15 of them were locals.
Never set your skill level by what you can do now at the national level. It should be set by what you could do at the nationals and can do at the locals.