First you need a host. A host is a server that hosts your URL and gives you space to store all your web content. WordPress and Blogger are the two most popular free blog-hosting sites, but you’ll ultimately be driving traffic for WordPress and Blogger, not you.

Aside from those platforms (and other blogging platforms like Weebly or Tumblr), there are regular-ol web-hosting services, which is what you really want if you’re going to make blogging your business. Here’s a link to a review site for you to find a web host you like and that works for your needs: Web Hosting Reviews – The Best & Worst

After you get a host, you have to load a blogging UI onto it. The most popular of these UI’s is WordPress, which runs a lot of websites you see online. Joomla is also seen quite a bit. Here’s a list of those services: http://www.wpbeginner.com/showcase/wordpress-competitors-23-popular-alternatives-to-wordpress/

Now that you have a host and a blogging service, you need to register your site with all the search engines: Get your content on Google
Submit your Site to Bing

At this point, you have a site, and the search engines know to have their search bots crawl it for valid content. So, you’ll need to start adding valid content, but before you do, you have to monetize the blog by signing up for affiliate programs.Amazon Affiliate Program, Rakuten Affiliate Network, AdSense – Google Ads, WordAds, How Affiliate Programs Work, 10 Popular Affiliate Programs for Small and Medium-sized Blogs

Now that you have a web address for people to find you, a UI to display content, notified search engines that you exist, and set up ads to display and make money, all you have to do is start writing blog content and promoting it.

That’s all there is to it. 🙂