Playing bingo apps is a legit way to get some money online. Most of these apps are free to download and beginner-friendly. Plus, you can choose to use your real money or online currency to play. But, there are many scam apps that make elaborate claims on how much you can win.
As you've discovered, NOBODY is paying you big money just to play games or watch videos. Feel free to play those games if you find them fun (some people do) but do not play them expecting to ever get paid.