There is no fast way. Take the time to really read the forums. You will see that we have many highly-successful YouTubes here and all of them will tell you their success was over time with a lot of hard work.
Step 1 is to make really good content, optimize its tags, optimize it for SEO. Step 2 is to always get better at Step 1.
I'd watch Roberto Blake, he gives many ideas on revenue diversification, but none of it is around YouTube. Maybe merchandise and affiliate sales, but even then it's going to take you a while. Depends on where you live as well. I know employment isn't easy to come by at the moment thanks to covid, so I'd say affiliate marketing and sales. And definitely watch Roberto Blake. There's also a good channel called "affiliate marketing mc" who does lots of stuff based on affiliate marketing, and "wholesale ted"
But YouTube it'self isn't the path to grow money fast.
You can also check out this interview with we did our friend, Roberto Blake, on our Youtube Channel where he shares how he has created a 6-Figure income using the TubeBuddy Affiliate Program. Watch it here: