Write often, about anything.

Perhaps try nicheless.blog, I write there regularly. Given a 300 word limit, I can write one or two thoughts. The word limit necessitates merciless editing, if i care to have a coherent message to say to the reader.

I write about, literally, anything, at first. Writing is a muscle rarely used by anyone. It is a superpower that could be mastered, or at least harnessed, by everyone.

Currently I write about boring ole everyday subjects. Putting in the work. However, I am getting ready to try flash fiction, then perhaps a short story.

Good luck.