From Wordpress to my own domain

Hello, 

I have an almsot 3 year blog at reveringthoughts.wordpress.com and now after having purcahsed the domain for months, I finally got hosting and created a whole new blog at reveringthoughts.com. 

Now, I'll redirect the links from my .wordpress to the new .com domain. The confusion now which I'm having is, 

1. Will I again have to apply for IB membership ?

2. Just adding another blog to my IB profile would be enough ?

3. To continue getting the same kind of traffic, what other steps I can take ? 

Your response would be really helpful. 

Thanks in advance!!