Affiliate marketing is not something you can master in a day. It is not as easy as posting your affiliate link to every person on earth. You need to constantly update yourself about the business.
You can get people to motivate you everyday but I personally think that motivation should come from within. You should be clear of what you want to achieve in life and in your business.
If you get your mind right, you will be able to market your product more consistently and it will be your turn to give encouraging words to others very soon.
Hope that helps.