5+ years bankrolled on savings from working full time? Well done. I mean damn, well done. You are not crazy to give it up. I can't speak from experience; I am in my early 30's and gave up a lower rate about six years ago to good result, but that's just anecdotal. It seems to me you have a very strong position: You have serious industry experience and, from your description, very strong financial responsibility. It's…
I used the retirement calculator my brokerage firm has on their website. According to their Monte Carlo simulation, I have about 10 years to financial independence (90% chance that my money doesn't run out before I die), income, savings rate and expenses remaining at the same level. That happens to be around $1 million in savings in today's dollars. It's tempting on the one hand, but on the other hand: 10 damn years!! I don't know if I can do it.
It's weird, I'm hoping that the decision is somehow made for me. My company being acquired or forced to downsize, offering severance packages... But alas, it doesn't seem to be in the cards.