Echoing some other sentiments--
I was getting sick of freelancing about ten years ago, and made the decision that I would only take "one offs" if it furthered my career. It seemed like from then on my gigs lasted 2+ years. If they didn't get me closer to my dream job, at least they kept food in the pantry and the creditors from the door. (What that "dream job" was during all those years still eludes me, but that's another story) When I finally got the gig I have now (University position, LORT contracts, health and pension, etc.) the plusses so outweighed the minuses that whatever happens now, the future is clearer--and easier to achieve--than ever before.
Keeping your eyes on the prize, whether it's health insurance, a house of your own, a Broadway show, whatever--that's what'll make the job satisfying. Stage management is a wonderful career, but like all careers you should always remember than in some respects it is a means to an end. Doing it just to do it (or because you "love the theatah!") only gets you so far.
I hope that doesn't sound cynical...I've been doing this from 1977 (when I got my AEA card). My marriage has survived, our daughter thrives, I've had only two "temp jobs" in all that time. Take the break if you need to, Shoos, but identify your goals and strive to achieve them! The important thing is to
be pragmatic! Not only will it get you further along, but it's one of the best traits a stage manager can have!
Thus endeth my rant...