Just keep writing
Every once in a while, I write even though I have nothing to write.
Sometimes something comes out of it, and sometimes it does not. But I keep doing it in one form or another because it is easier to keep going than to get started.
I find it more motivating to do it publicly, even if no one reads it. It adds a bit of healthy pressure. But it does not matter how you do it.
Write on your phone, computer, a piece of paper, or whatever. Write spontaneously or thoughtfully, in depth or shallowly, personally or generally. Write a sentence, 500 characters, or three pages.
It does not matter. It is all up to you. There is no contest, and there is no right or wrong.
Just keep writing...