I think I can...I think I can!

[AutumnBreez]

You have to start somewhere right?! Allow yourself some room for change. Riding your bike will be a nice new experience from spinning as you will get fresh air, and change of scenery!
I don't know how much you are getting out on your bike since you got it. Were you fitted for it? and if you are having any issues with the saddle. If you are not fitted well and/or the saddle is not allowing your sit bones to rest properly you may come into problems within the first hour...only speaking from experience and reading others beginnings. I believe that the long ride with your new friends will be more enjoyable if you are comfortable and not in pain. If you are doing well on your saddle for an hour or more then you will do fine. If you can get out everyday for an hour ride before meeting with new club you will feel more confident and have time to bond with your new bike (know if you need to do anything-little or big adjustments to be made, etc. )
Wish you lots of fun on your new bike journeys, and welcome Cindy to the TE Forums!