This can likely be related to us using our websites as a portfolio and a resume, too. And it does indeed become paralyzing if you want to always make a good impression and you can't goof around anymore.
My solution will be: have 2 blogs. One strictly professional where you post HOWTOs, and another one where you post anything and everything.
I went for that solution. Got a main blog were I post more polished stuff and a microblog. On the latter I can just post spur-of-the-moment content. Also significantly lowered the barrier of posting to the microblog by just typing in a Notion page that's rendered to html and rss every few minutes.
My solution will be: have 2 blogs. One strictly professional where you post HOWTOs, and another one where you post anything and everything.