You have FU money saved, or rather, enough where you could live in a mid-sized US city in perpetuity off the interest on $4.5m - assume 5% per year on that and

You have FU money saved, or rather, enough where you could live in a mid-sized US city in perpetuity off the interest on $4.5m - assume 5% per year on that and its $225k without touching the base. You could literally quit and just start throwing spaghetti at the wall until you see what sticks (try 1 idea per month or two). You already have freedom sitting there.