Posting twice a week in the RP would be more than enough, seeing as we usually get in one post a week or so. It depends on how quick the others are. One is only as fast as the person they are waiting on. So if you aim for that I doubt there will be any problems.

As for your character, well you can always keep her around and just make a new one. You may feel her a little later and can pick her back up then. She is not attached to anyone at the moment so there is no worries there.

And good luck on the novel writing.