Ask HN: How to Become a Technical Writer?

I have come to understand that I really enjoy reading about difficult concepts and then meticulously explaining them to others in a clear manner. I have started blogging about Lisp and it’s proven to reasonably well received (link below). I would love to consider a career shift and become a technical writer, does anybody have any tips on how to do so? I am approaching my mid 30s so not sure if it’s possible to make the switch into the profession (and whether it will be stable enough for all the usual expenses one accrues by this age).

I am also happy to volunteer for any of your projects, if it helps me get experience and references.

Link to blog: https://ashok-khanna.medium.com/

Link to a couple of posts I did that did reasonably well on HN before:

https://ashok-khanna.github.io/pdf/

https://ashok-khanna.medium.com/lisp-the-web-4c00c88d11f9