It doesn't have to be incredibly eloquent. It doesn't have to be the definitive work on the subject, or even your full opinion, for that matter. It doesn't have to be clean and pretty, full of perfect prose and void of mistakes.
All of that is what editing is for. Challenge yourself to do that another day.
You have something amazing to tell the world. Share it. Tell your stories, whether they are your own or something fictional. That poetry that is swimming around up in that noggin of yours; write it down, even if it is simply two lines of rhyming verse. That funny quip about the state of current affairs; write that one down, too.
I can't wait to read it.