have a look at the thread for the Epsom Allsorts women only Hogsmill 5 race in Events and Beginners, tiny.
There were loads of people finishing at this race in about your time and slower, its a shame you couldn't have come down for it, but Im sure there would be similar races in your area. So you certainly won't be the slowest runner around. I ran for a long time at that speed, and thought that I couldn't possibly be faster than anyone, and that if I could break 50 minutes for 5 miles, I would be some sort of super runner! Now I can do 41 minutes for 5 miles, but I still feel slow compared to the faster runners. I think it is all in the mind, how fast a runner you feel you are