From what I've read the Game Stop story is more complicated than it seems. The person behind the squeeze (Roaring Kitty) is a CFA who did his due diligence and concluded that the stock was seriously undervalued. The value of the company's real estate alone justified a higher price than it was selling for when he bought in, apparently.
And then there's crypto...
Looks like the way to make money there is to set up buy and sell orders within a relatively tight price range so as to extract a few bucks every time it dips and rebounds rather than buying a bunch and just holding in hopes it goes stratospheric. The trick is determining the right prices to buy and sell at.
This just happened with XRP (another crypto currency), which seems to have some potential like Bitcoin. I still don't know what to make of Dogecoin since there's no limit on how many coins can be mined, unlike with Bitcoin or XRP.