you are better off taking the mental energy you would have expended on "investing" and subsequently worrying about your money, and instead funneling it into your creative endeavors. You will make more money that way, especially when you take a long-term view.
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If creative endeavors are profitable, you can use the resulting money to fuel more creative endeavors, thus making the world a better place. Keeping money in a bank account or publicly-traded stock does not particularly make the world a better place.
Once I got approximately into the f-you money level of income, it became crystal clear how fictitious money is in the first place. I wake up one morning, and bam, I am wealthy! Why? Because someone said so and typed a number into a computer. Okay... that's kind of weird.
Given that money is so fictitious and somewhat meaningless, it is a shame to give into primal hoarding impulses, just so one can see the number in one's bank account go up like a high score in a video game. It's much better to make like Elon Musk and use your money for what it is: a way to wield influence to make the world more like you would like it to be.