Welcome! I'm glad I'm not the newbie in the club any longer. Glad you weren't badly injured. I've fallen twice and my biggest injury was mental -- it's hard to forget that falling sensation.

I'm happy to report that unclipping is becoming more and more automatic with every ride. I unclip without even thinking about it as we approach stops or I prepare in advance when riding in heavily traveled streets. I plan to put clipless pedals on the new hybrid/fitness-roadie/commuter/whatever so I won't "forget" when I get back on the Roubaix.