"Who else would benefit from my being a successful marketer?"
I take out a piece of paper, or just open up a notepad on my 'puter, and make a list of everyone BESIDES ME who would benefit from my becoming a successful, productive, kick-ass internet marketer.
As the list grows, my power grows, and before I know it... I'm doing that stuff that I didn't really want to do 15 minutes before.
Give it a try, it might work for you!