Au contraire, once you have beaten the long odds of going from 0 to 7.5M on what amounts to a lottery ticket, then beating the 50:50 odds of divorce seems a piece of cake.
More generally OP should feel like a god right now, what's the point of having 7.5M if succulent brain juices aren't flowing like the Mississipi river to signal that the world is yours?
He should be feeling confident about doing stuff way riskier than 50:50