Being out of the workforce for any reason can really shake your confidence. Although it is scary you will probably find that you really enjoy the mental stimulation. It is probably a good choice to go into something less demanding for a while and get the feel of being back in the workforce without the pressure, and I have always found that feeling needed in the workforce is really good at boosting my self esteem. Good luck with it!

And BUN - hope you interview went really well too!