If I had that much money, I'd found a company focusing on creating real value instead of just sales volume. Employ old people, enable direct trusted donations to African schools (Crypto?), make an app to teach 3rd world women how to treat their first baby, introduce and establish a social coin to reward caregivers... It's a great feeling to make the world a better place. And there are endless possibilities to help making the world a bit better each day if you don't have to waste your time to make money.

I'd advise you to reflect deeply. Imagine you're walking through the "museum of your life" at the last day of your life. All the pictures there show your important moments. What pictures is that museum presenting?

Showing off / buying expensive things makes you happy for half a year. Having a true social impact has a lasting effect.