The first draft of history is dictated by those who get to publish and distribute their writing; a task that was arduous for much of recorded history. Now, smartphones and the internet are our printing press, and it is easier than ever to get some writing out there. As such, anyone can contribute to the first draft of history. There's a lot of value in that. It's one of the aspects of modernity I am most grateful for. By contributing together, we give future generations a deeper sense of how people in the past felt.
If you find this idea as exciting as I do, I highly recommend setting up some way to publish and distribute writing or another means of self-expression—whether it’s making games on itch.io, publishing art on Instagram, writing short posts on Substack, or maintaining a simple blog like I do. Beyond that, it's worth considering your goal in this. I held back for a long time because I always thought that any writing I put out there should serve a professional purpose and, as such, should be held to a professional standard. I’ve realized I don’t care about that as much, that it's better to express oneself at all than to always hold back in fear of poor judgment. I express myself here so that I can contribute ever so slightly to the first draft of history. Any benefits aside from that are tangential.
If you're the kind of person who wants to write but doesn't really care about turning it into a career or anything, I would encourage a similar sense of indifference. I would encourage you to write and express yourself in whatever means you feel is best suited to you and to only polish it to the extent you feel comfortable. No one should expect Hemingway from someone who's just writing for fun—so don’t let that stop you from putting your thoughts into the world.