From bitter experience: if you have well established subject matter expertise on a topic, you should almost certainly not be writing Wikipedia articles about it. In Wikipedia's framing, you are a generator of primary and secondary sources. Wikipedia is a tertiary source: it is exclusively a roadmap to other, more authoritative sources. Instead of writing Wikipedia articles, write the articles Wikipedia will end up drawing from.

It's quite painful to directly edit Wikipedia articles on your own areas of expertise. You have context lay readers don't have, and you'll often leave things implicit or skip steps, because you know that laying those steps out and citing every detail of them isn't helpful for learning & understanding. But the encyclopedia doesn't work that way: the community there can't tell the difference between sensible elisions done in the spirit of efficient explanation, and original research that simply takes an opinion you hold idiosyncratically or fractiously and mints an encyclopedia article out of them.

It's also going to be deeply suspicious, for very good reasons that don't apply to you but do apply to like 70% of all other cases, any time you write something and cite yourself.

It is also just the case that not everyone should commit themselves to writing whole Wikipedia articles. I found the process pretty unhealthy; it sucked me in, to be sure, but it also filled my time with rules lawyering and squabbles. It'd be easy to criticize Wikipedia for having that culture, except that the project is so spectacularly successful.