No amount of money is enough. If that was the case, then the richest people in the world (such as Jeff Bezos and Elon Musk) would be giving away most of their wealth. But these people are still trying hard to get themselves more wealth. Like I said, there is no limit for ambition. Those who are having $1,000 will aim to become a millionaire. Once you become a millionaire, you realize that you still can't afford certain things. Now the aim is to become a billionaire. And once you become a billionaire, the next target is to have a wealth of $10 billion.. it will go on like this..
it's not always like that, since greed never ends if you feed it.
there's always a higher number.
an interesting key is not elevating lifestyle and spending as fast as one elevates income (which is hard on sudden prizes like OP's story, but still doable).
another interesting take is that happiness and money walk together until certain part of the path, where they separate, and earning more money doesn't make you happier afterwards.
better pursuing other things like purpose, challenge or enjoyment.