Go get a job, pronto! After you land a job you can look at doing a side business, but you have to cover your basics first. Make sure you have enough money to cover your bills, plus some extra cash to invest in your business. Invest in your education - you are a sales rep, so study sales psychology, leadership, and your business and products.
You can do it, and make a go of it, but you need to think long-term. It's going to take time to learn and grow.