Well, to help the OP -
I would suggest something along the lines of perhaps putting out a casting call on craigslist or model mayhem, or even asking fellow classmates to go and shoot with him to help build up his portfolio.
If he's feeling his English skills are lacking, he can ask someone to proofread his emails before they're sent, or hire an editor to fix his emails - I've been known to do that for a few deaf biz owners myself.
And last, forget about the people who "promise to pay" or "really want you to take their pics, but don't want to pay." They're not worth the time or headache, unless it's something you probably couldn't get an opportunity to do on your own, like taking pics for the Girls of Hooters calendar.
Raise your prices. 40 bucks is WAY too cheap. You have a lot to account for - equipment costs, time, travel, gas, living expenses, food...I could go on and on, but if you want to make this your profession, get started in the right direction, and treat it like a business, not a hobby.
Last, but not least, if the OP wants to talk to me directly, he is more than welcome to PM me to VP call to touch base about photography biz stuff.