How do you do copywriting online to gain money?

Honestly I'd also love to know the answer

But based on a little research I've done,you need to go deeper in the type of copywriting you'd like to do

It's called niche,that's like a branch in something

There are different industries you could write for.

You could be a health writer,

I think there are free sites to learn more about copywriting,you should do more research on it