I think the key to getting into the habit of writing blog posts is to make the actual process of writing and then publishing as easy and frictionless as possible. I use Bear app for the writing - it's a very well designed markdown editor with some really nice, simple features, such as nested tagging. I then got ChatGPT to help write some scripts to publish it via the Quarto static site generator. I wrote about the process here:
https://thisisjam.es/creating/quarto-website-with-bear/