If you won the lottery of any amount
I personally would buy a small house in Japan and move there after which I would live simply and retire
And get a Japan citizenship
I don’t believe in buying expensive things it’s a waste of money and it would just cause you to go broke faster
So I would only spend on what I have to
Houses in Japan are pretty cheap but very nice
And start a international food restaurant in Japan
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Buy a decent house (full price up front) in a nice area, split half of the remaining money between savings and the stock market, then use the rest to live without working and help my family if they need it.