At a very simple level, and because you only give a simple picture of finances, you are not quite ready to FIRE if you assume zero work income. A 4% draw is 44k/year, and your expenses are higher. If you are in your 30's, 4% draw could be risky because you will be drawing for 50 years, not the 30 assumed. You should provide more detail on assets and expenses, as shown in the pinned how to. You will probably need to reduce expenses, think about future long term expenses - college for kids, higher health premiums at 50+, future car - , and find a new income source, though it could be small.
If you are looking at a sabbatical, then you have plenty of "screw you" money to pay bills until you figure out something new. Between cash and taxable funds, you have 10 years of expenses. Just don't burn them all for nothing.