Hi Denise,
Congratulations on your ride! Where do you live? One thing you can do to get more comfortable riding on the road is to drive to a lower traffic destination and then ride there. A lot of people in the Boston area do this. It is good to get your confidence on the path, but as you become more confident, the walkers, roller bladers, strollers, and kids will seem annoying and even dangerous. Many times they do not yield to cyclists and even if you are going about 10-12 mph, a crash with a child or runner isn't good. There's plenty of low traffic roads just west of Boston and in central MA. I can give you some hints if you want.
Robyn