Yeah, THM is going to be your biggest priority right now. But, since you may be tired of grinding and want a break from that, you could do some endgame and work on getting some situational gear for your CNJ. The SHs drop some gear with decent stats (magic attk+ and -enmity) that you can't materialize to those particular pieces. Using up a little gil to purchase or craft a fully materialized set of gear in the meantime would also help (if you haven't already).

And of course there is always Ifrit if your up for it, as a 50CNJ you don't *need* anything else to be useful in the fight (altho Sacrifice III from THM, and Sentinel from GLD can make it alot easier -- but I didn't have either of those when I first started running it, as it's completly doable without them).