I didn't vote, as my answer wasn't there. It would have been something like "Possibly, with reservations, though I didn't do it this way." Allow me to explain.
Since you are a self-proclaimed worrier, my main concern would be not so much whether your portfolio would survive. According to Firecalc, it would have survived everything that history could have thrown at it. My main concern would be whether you could stomach it were your portfolio to dip severely during the withdrawal phase, before recovering. This is something only you will know after that first bear market happens during your retirement. It hasn't happened for me yet - I'm still waiting for mine.
I began withdrawals a little earlier than you have - at the age of 47 (a little less than 3 years ago), and have been using a 2.5% WR (not factoring SS in). This gives me the necessary degree of comfort. The relatively low 2.5% WR is not because I have a large stash (I don't) but because I live on a very modest income. However - you do have that contingency fund. I like your "stuff I might want to buy" category!
One other factor to consider - the market is riding pretty high now after a several year bull market. If you were thinking of retiring a few years ago, there would be a very good chance you wouldn't experience any of those "low-hanging" Firecalc lines. I'd say the chance is a bit higher at this point. How much higher? Who knows?
I hope I haven't discouraged you - that is not the intention. My intention was more to bring any risks (as I perceive them) to your attention so that you can determine how you feel about those possible risks. Only you can make that determination, of course.
You sound like you're in pretty reasonable shape. That fact alone should help you to deal with the BS at work. Think of all the other folk who do what you do, who have no other option but to keep working. You are blessed - you have options!
P.S. I think you'll most likely be OK. It's what you think that matters though.
P.P.S. I'm just a guy who lives on his own with 3 cats, a foster cat, and a bicycle, in a cheap apartment. What I think about your situation really doesn't matter all that much at all