You can make money in a variety of ways.
One
is to serve ads on your videos by monetizing them using Adsense or
Freedom or another monetization network. But this will only work if you
have over 1,000 Subscribers on your channel and 4,000+ watchtime hours
in the past 12 months. These are the Youtube rules.
You
can also promote products or services in your videos. And you can add
links in the descriptions of your videos promoting products or services.
That’s pretty much it actually.