I wrote this in 2010 when I was still doing web design work:
“I am my most important client. When the rubber hits the road, my own projects have to come first. I refuse to give the best of me to someone else. Certainly, what my clients do get is still pretty darn good but make no mistake, I favor my own business in every situation. Clients come and clients go, you must not burn yourself out on other people's projects while your own dreams languish.
If you manage your priorities well and keep a portion of yourself for your own long term projects, you'll reach a point in your business life where you'll be able to make choices about how you spend your time without guilt or fear. Isn't that what we all want? (Say yes!)”
It wasn't more than a year later that I stopped taking design clients and never looked back.