There has been a lot of good advice here (get some medical insurance, use your unemployment benefits legitimately, have a re-entry plan for when the money runs out, don't burn any bridges when you leave, etc.), but by far NOLSe's is the best advice I've seen yet on this thread.
Ancient Chinese wisdom that I've found quite useful in my own life/career:
"Choose job you like, never work day in life."
I'm also an engineer, and I haven't "worked a day in my life" for the past 20-odd years. Yeah, there were "dues to pay" in the profession right out of college, but they were fun, young years of making my mark. Now I've "arrived" at a place where my word and opinion means something in this business. A few years ago I negotiated my hours down considerably to spend more time with family and kids. Best thing I ever did after becoming a suburban dad. My timesheet never reads more than 90 hours for a two-week period now, and that's manageable to still have a decent life after work. Sure, I should have taken more time off when I was younger, but I got out of engineering school at almost 30, having spent the years between high school and my second try at university sowing my oats and bumming around. I wasn't into climbing yet, but I did other things just as fun at the time (thru-hiking the AT, skydiving, WW rafting/kayaking, motorcycling, etc.). Never regretted it, and it made my second foray into college that much more enjoyable.
So yeah, take the time off now, heed the advice you hear here, have a good time, and be prepared for when you tire of the road and want to come back to your career.