Marketing is an art. You can make many dollars or nothing with your art. The motivation is fundamental.
Every person has his personal motivation. and it's difficult to find the right one.
The smart move one can do is to test his promotions and repeat the good ones. In internet you can find many free promotions like free ads, free articles submissions and so on.
The sales usually comes from the top traffic sites. I suggest you to target your traffic and use the products you sell.
You gain more if you change your promotions. Only the best promotions will get sales. So start testing your ad's title then your ad body and so on.
Imagine that your unwanted feelings are like water. Notice the feeling in your body. Rate the negative feeling on a scale from 0 to 10. This is the marketing feeling.
Allow yourself to feel one with the pain of discomfort. Accept it. It's the hardest part.
Relax and let your feeling to go away. Do not put too emotions in your promotions. Control your expenditure. Remember the more people you motive to get your products the more you'll gain.
You can not control the actions of the persons that bye your products but you can look for other people. Show them your results, your earnings proofs and they'll follow you.
Marketing is an art and you can always improve your methods. Remember every company in internet will claim that they are the best and so I suggest you to test them personally, do not trust the voice from not expert people.
You must investigate in the market and look if the company is good. The good ones usually have a forum for the new people to explain how to work.
A good company usually have a learning section and some products that teach this argument in an exhaustive way. Happy earnings!