I probably wouldn't quit my job because I like it. I probably wouldn't even tell many people I had that much money. My only debt is my mortgage so that would be gone. I'd probably buy a better house with an actual yard. Sell this house to my roommate for dirt cheap. (There's no way he'd just take it)

Probably do some lying that my brother won some kind of raffle and give him a bunch of racecar parts. Shit maybe even sponsor a race team or two, gotta get the young kids back in the sport as all the old guys retire.

I'd probably buy some land in another area, give myself a vacation house. But this wouldn't be immediate. Probably get a new car, mines pretty old. Build a greenhouse on my new property, have way too many rescue animals. Maybe even run a small rescue.

All this is assuming I've already set myself up for retirement and I'm good to go with everything else.