In terms of what to charge... totally depends on the situation (what services you're offering, who you're offering it to, and the market you're in). I don't generally think people are afraid of paying too little... certainly like $25 / hour -- most SMBs would love paying something like that for the work, and it's about what you'd make hauling sofas and moving boxes around... just a lot easier on your back. You can come off as very high quality, and still have a low price... my guess is you aren't instilling confidence in your presentation. Easy to fix... take a public speaking class, dress a little nicer (suits never hurt), and carry a notebook (http://www.staples.com/Staples-Composition-Notebook-College-...) -- this gives people confidence to see you're an active listener and making a to-do list of action items (http://lifehacker.com/5575748/best-to-do-list-manager-paper).

Spend an hour on Yelp generating a prospect list... find all the local businesses that use WordPress, practice your elevator pitch, then clean yourself up and go walk around asking to speak with the manager.