Getting paid

Hey y’all I’m new to creating content and started a channel with my friend and sister and bought enough subscribers to be able to start going live. I seen on YouTube studio that in order to even apply to start earning money I need 500 subscribers and either 3000 public watch hours or 3 million public short views. I guess my question is, is it worth it to buy the 3,000,000 views to be able to start getting paid? What should I know about the process? Thanks in advance . And what exactly is public watch hours