Honestly, you will not make good revenue with google adsense until a few months. People usually do not reach $100 payment until 3-6 months.
Take a look at this. http://hubpages.com/help/success-stories
You currently only have a few hubs. Unless they are getting 100s of views a day you will not make much yet. Once you get 100+ hubs things usually look better. Do keyword research, write on at least 3 main topics/niches, and send backlinks.
Treat this as a hobby and a business .
I only made a few dollars my first few months. At this point, I should make the minimum adsense payout each month because I am making revenue from the hubs from the past and recent.