Welcome to the community of runners Justine. Running is a strange and wonderful activity. It is a blend of stress and relaxation, ... the here and now and the yesterdays and tomorrows, you immediately have friends you've never met. All it takes is some commitment and some time and you there. The next few months may seem hard at times, but there will most certainly be times in which you find happpiness and accomplishment.
Check into the Penguins to meet a whole bunch of folks that are in various stages of their running lives.
http://community.active.com/thread/91142/calling-all-penguins-slow-runners/0/0
You might want to move toward the end of the thread to see what is going on lately.