Poodle Person, please forgive my impertinence, but with all due respect, refusing to tell family about a radical change in your own life cuts them out of your life; claiming that your refusal to do so somehow protects them from your (possible/anticipated?) failure gives you permission to fail.
Revoke that permission, give your family a chance. The addict in you is hedging its bets. If you want to refuse something, refuse the addict, embrace the quit, and allow your spouse/children/poodle/poodle skirts to embrace, enfold, and support you during this challening time.
Me, I have all kinds of voices in my head, but I'm slowly discerning the addict from the real me. (What was that you said, Toto?)
Good luck!
peteg