I listen to music to assist me with my writing. It allows my mind to focus a little more so long as the music is in a foreign language (usually Russian or Japanese) or there are no lyrics at all. Lyrics will cause my mind to sink into the music rather than the piece I’m writing.
I’ll write until my body literally starts overheating or the emotions become too much. At that point I will watch a TV episode of my choosing or an episode of anime. Yes, I watch anime. After my mind has relaxed, I go back to my writing.
I seem to be able to write for longer periods of time without stopping when I have a glass of whiskey on the rocks to calm my body and mind while I write. But that’s a very rare occasion.