Congratulations and keep up the good work to all of you fabulous women out there who are trying to do something for yourselves and your health by riding a bike. Don't let anyone tell you that you are "too" anything to ride a bike.

I think cycling is an especially good choice because you can see improvement so quickly! Do keep a journal--put anything in it you like, but here are some suggestions:
date, time, weather, distance, average speeed (eventually get yourself a computer), who you rode with, how you felt (physically and mentally), what you ate before & during...
It's fun to go back and see evidence of your improvement, and it's helpful to see what works and what doesn't (like eating, for example).

Keep pedaling...