I would use it to give myself every single power I’ve ever desired including bestowing myself a transcendent demon physiology Later I would create countless crossovers or "what if" realities of my favorite anime,video games,and other shows I enjoy to watch. With me observing them all and control what happens in each one from the shadows.
I'd use it to take all the overabundant money from the top 1% of rich people/businesses in the world for myself and store it in my infinitely-expanding-and-shifting-interior house. So none but the ones I trust could ever be able to take it - they'd just be forever lost in my ever-maze.
Then, I'd actually disperse that money properly to everyone; so no one would ever be "poor" or "rich" again - just comfortable. 🙏✨