It's difficult to explain, really — success is different to different people and what inspires me may not do the same for you.
However shallow it may sound, money is a huge motivator in itself. From my experience, your perspective also changes (towards how you approach markets) once you have made a decent bit of money. So, it becomes a kind of vicious circle.
There are different things that could motivate you. Visualizing what you want to get, of course, is one of them, especially if it comes naturally to you. It can be equally demoralizing though if you're not working towards your goals. You have made a start so that's a good thing. What you could do, perhaps, is try and set smaller, short-term and realistic goals. For example, try and cross the $100 mark.
Once done, try and cross the $500 mark. So on and so forth. Celebrate just a little when you reach each milestone. These goals can keep you motivated and can, in fact, help you a lot.
EDIT: Another small thing: if you haven't already, add a couple of people on Skype who are at the same level as you. Set collective goals and keep a track of how all of you're doing. Doing something like this publicly can be good too.
Having said that, different strokes for different folks. May or may not work for you.
