Have you studied at all? Its difficult to mention one exact course that would cover your needs - but for short courses I suggest you contact Damelin or Varsity College and ask them what courses they offer that are in line with your career ambitions. UNISA may also be a good place to start. To secure customer is always the hardest part in setting up your new business - my key advice would be to create credibility for yourself. People want to know what work you have done already - so be ready to share a portfolio of your successes. Perhaps do some pro bono work for an NGO or Non-Profit Organisation to get some experience under your belt.