I'm new to CJ. Please Help me

Hi There,

I'm new in CJ as I joined it 2 Minutes ago only.

I wanna ask some questions:

1. Can we use Content Locker or something to promote CJ Offers?
2. Which is the best niche of the CJ to promote?
3. What are the other methods I can add CJ Offers inside my Site or Videos of Youtube?

Thanks