How to become a functional MS Dynamics consultant


I am a MS dynamincs NAV recruiter and I have become very interested in learning about NAV and i would like to become a NAV consultant

Do anyone have tips for me on how i can go forward with it? 

What do i need to know in order to become a NAV functional consultant?

Any books or videos can you recommend me?

I have downloaded MS dynamics NAV 2016 software