Write down every topic that you are knowledgeable or passionate about. You'll have a much easier time making money from a blog you are interested in, rather than trying to write content you don't like because you think it will make money. Some examples are hobbies that you enjoy, your career, or some specific and miscellaneous knowledge that you have.
Google Adsense might be the fastest and easiest way for a beginner to start earning passive income with a blog. The basic idea behind Adsense is that you can display Google Ads on your website and when a visitor clicks on those ads you get a percentage of the ad costs. You've certainly seen ads on other people's websites; you can have these ads appear on your blog or website as well.
If you want to really make money with your blog, you need to create a mailing list using one of the billions of email service providers out there. I use and love ConvertKit, but if you are just getting started and don’t understand sales funnels, sequences, or tagging you might want to start off with something simpler and free. If that is the case go with MailChimp where you get the first 2,000 subscribers free or Mailer Lite.
However, in regards to the part-time aspect of things, I was working a full-time job and committing myself further down a path that would’ve sapped my will to create and function artistically the further and further I went down that path. So I guess you could say it all collided into one giant “mirror moment”, where I finally looked inside of myself and told my doubts you know what, I’m going to finally do this.
Write content. I like to write an article from beginning to end with no breaks. It may take me an hour to write an article or I may be at it all day. Sometimes, content does span a few days, but for the most part, I like to finish a piece of content in one sitting. I then hand over the content to my editor to fix anything from grammar, punctuation, to the general flow of the article. The only thing she doesn't edit is my monthly income report.