I think I’m experiencing entrepreneurial burnout. What can I do to get past this feeling and get back to being my creative and productive self?

The best way to recharge your creative batteries is to change your routine. Take your dog for a long walk, skip out on work one afternoon and meet a friend for a beer or play some golf, work on something unrelated to your business for an afternoon, or work different hours one day (9pm - 5am vs. 9am - 5pm). Change your routine.