To market and sell products and services, it takes courage, and there should be no doubt in anyone’s mind about that. If it was easy, then everyone would do it. It requires getting out of one’s comfort zone, being able to accept “no” for an answer sometimes from a potential customer (even if it’s your mother!), and to keep going with renewed enthusiasm to get the next customer.
One perspective from a local sales person who sells air conditioning units is that it is all statistics, and he says he only makes a sale for about 1 out of every 10 customers he talks to. So when you ask him if he is discouraged when he has gotten 9 consecutive “no” responses, he responds with enviable enthusiasm “heck no, that means one of the next couple is going to be a sale!”