It seems as though we all have our own "comfort zones", and we kind of get in a rut sometimes, but we tend to stay there because we don't have to work too hard at it. It just comes natural. And, then some of our "comfort zones" were put in place for different reasons at different times, and they may not work for us anymore.
Sounds like you've been busy creating new "comfort zones". I applaud you. There is nothing more scary, but in the end, how refreshing it can be. Old doors close and new doors open up. Just remember that stress is present when new stuff is going on, so be good to yourself.
Life is beautiful, isn't it?
Karen