Usually, I have to psyche myself up to write. Yeah, I know, even though I like doing it. Gotta get up, wake up, have some coffee and silence all those naysaying self-talkers running around in my brain.
Then I play some music that makes we want to get up and dance, or run around the yard, or ... write! In fact, I listed to a video on YouTube of "Boondocks" by Little Big Town. In fact, there's a whole "Country" playlist filled with songs that (mostly) rev me up something fierce! And the more engaged and excited I am, the more passionate my writing, and the clearer my 'voice'.