True, marketing is not easy. But it is the most fulfilling job if done properly. Once you learn the ropes in marketing, nothing will every be a problem in ones personal life and business. Because all business, including personal relationships and intimacy, is pegged on marketing.
The toughest thing i face in marketing is dealing with hard-to-understand people. These are people who will say your product is bad, and yet they haven't even tried it out.
What i always do is to keep following them up. Researching more on them. If i see they have the potential of buying or using my product, i make sure i give them a free sample and wait for their feedback. Most of such clients are now my repeat clients.