It shouldn’t pass a day without writing about something. Whatever you have in mind, as long as it is not going to overwhelm you with serious troubles, wordify it.
Anyways: Importance is to tell something. It doesn’t necessarily have to be occurred- but most importantly you make it up. I don’t mean lying though it is basically lying but seriously *purposefully* it is for the sake of practising to come up with a well-expressed composition. Your goal is that you let others get hooked by your imagination and your intellect.
Writing skills results from writing as many compositions as possible. Writing is a habit so it is advisable to write on a daily basis despite of the fact that you cannot think of anything. In fact, interestingly, you need to write about why you couldn’t think of anything and tell it in written words. See? It is never a problem of inspiration.
The problem, personally speaking, is sometimes I somehow get the sensation of timidity for I’m trying to admit something about my personality, or about something that I suddenly start to look at it trivially.
Writer’s block is a myth, I believe. Fear of confession is the killer of evolution.
Write, even for a period of minutes, and never fear your imperfections, it is actually the step up to self-recognition, self-taming and self-learning.
Admit it: I just did my writing and you are currently reading it.