I wake up at 4:00 every morning, sometimes earlier. It's the only time I have peace in my house, so that's when I write. Throughout the day, if inspiration hits, I'll write, and sometimes in the evenings. But for the most part, it's early, before the sunrise.
Definitely. The best way for me to power through that is to take a day or two to recharge, then get back to it. Even if the ideas aren't clear, I sit and start to right. Turn on the faucet and eventually the words flow.