I just recently joined a woman's only group that helps us train for a metric century in October. The group is made up of all different levels. They have veterans that have been in the group in past years and continue to cycle all year long to women that haven't been on a bike in years. They split us up into groups based on our levels. I love that by the end of a 10 mile ride the person behind you has become your friend and cheerleader. We all have the same purpose, to become better riders and accomplish something we may not have thought was possible at one time.

If you can find a local group you are comfortable with I say go for it. You will learn a lot and may come away with some new friends.