What should i start with?

Hello, i have read alot here on the forum and im now about to begin trying to make som $.

I was thinking of finding a nich, buy a domain write about the subject myself or take something and rewrite it from some website.

Then building baacklinks.

is this a stupid why to begin? should i try something else first?

Start with what you are comfortable with doing. It doesn't matter what you choose as first project, you will learn so much from what you created that you'll know which path to follow. In the end you need to know a little bit (or a lot) of everything anyway. Get started and and see where it leads you. Good luck on your journey.