One of the harder problems about being an entrepreneur is letting go of the security of the job you might have with some large company. Chances are this isn't your problem if you're a recent graduate; so go for it.
My mistakes can help guide others through the process of starting and running their own business. If one is an organized person who is capable of focusing and who is frugal and careful, one should be able to make a go at it.
I agreed to teach an hour-long class to seniors at my Brooklyn-based high school alma mater, thinking I might inspire some young people to start and operate their own small business, as I myself had done at their age, and to do it responsibly.