Writing About Writing
I took on the habit of writing more frequently exactly a month ago now, ever since then I've been writing what you could consider a diary, as well as keeping notes about my interests, goals, problems, studies, articles, bookmarks, and lots more. I think that has had a positive impact on me overall.
In fact it is something I've wanted to do for a lot longer than I've been doing it, but never actually went ahead and started.
It's probably not useful for everyone, I just know I've been a lot less forgetful ever since I started writing everything down.
"Should I try doing it myself?"
It can't hurt to try. Whether you're using a Google Doc, or your phone's notes app, or a small notepad, or anything else, as long as you can write on it, you can use it to keep track of your thoughts. Personally, I use Obsidian, and I'll vouch for it for the foreseeable future.
"What should I write about?"
Ideally, everything! But if you'd rather take it one step at a time...
Dailies
...Then I recommend starting with a diary. Just write about what happened that day, even if it's not exciting at all. Went to buy groceries? Played a game again after a long time? Tried to draw something but couldn't get yourself to? Found a cute kitty while walking outside? Write it all down, put it on record.
Interests
After you get the hang of that, writing about other things becomes easier, try writing about your interests. Creators you like, games, movies, books, blogs, your hobbies, your aspirations.
"How should I write?"
That really is mostly up to taste, but you should write as if it were for someone else. Because in a way, it is: your future self.
Wrapping up
My cat is currently very needy and I've been having trouble writing down this post with a cat in front of my monitor. But in short: Write! It's good for you.
I plan on starting to write little pieces about my characters, I think that would be fun. I like to believe my writing skills have been getting better ever since I made a habit out of notetaking.