Sorry for the time this is taking. We know that some channels are caught up in the review process. Our team is making sure to review all the applications as fast as humanly possible. You should see an update soon about the status in your Creator Studio. Appreciate your patience.
While we can't share specifics, you may want to take a look at our Help Center article that has more info on what kind of content you can monetize: https://goo.gl/BpcrBH . Hope this helps clarify.