There are ways to supplement the wait to get into a DF. The daily hunts from HW, as well as the ones from SB if you have them unlocked(can't remember what level you get them at), you can also level a crafter/gatherer while you wait if you plan on leveling those as well, doing FATEs(even though most of the time you will be soloing them, it does help a bit). You could also make a PF group to run your roulettes(they seem to fill fast according to some people).