The truth is, it's hard to find a good loyal audience to monetize. My main blogging revenue is Medium Partner Program. Since beginning of 2020 I made around $500 from something like 5 articles. I don't blog a lot but I have access to pretty popular programming publications on there, allowing me to reach a wider audience. I also made some money from people reaching out to write posts for them. It's not a lot, but considering I only have 1.4k followers and treat my blog as more of a reminder/documentation for myself in the future, it's also not bad.

Medium can suck though, as their algorithm decides whether your posts will be shown on the homepage. Personal self hosted blogs on the other hand can be hard to optimise for search engines, which is something medium is great at.

Don't try to make blogging your main thing. You will either fail or it will take along time for you to see any decent sums in the first place. Do it on the side, and if it takes off then you can consider doing it full time.