Man, you can't judge over 9$. Companies do not even blink before 5 figures over a span of 1 month.
Well, just because I'm in mood, I'll explain a thing or two about paid traffic:
You must split test. That's the basic. Setup a tracker on a separate domain and vps to start.
Then you actually split test. Which means, ads with a different variable, each running on 5-10$ per day.
Variables are; landing page or even a single element of a landing page, image of the link on fb, title,desc,comment, copywriting in general. Bids, keywords, fanpages, CA, the whole funnel... etc etc.
You CAN'T expect to succeed at media buying without studying ins and outs of media buying, copywriting, psychology etc.
Anyway, keep in mind, you must also learn how to do proper market research, and possibly spend money in testing just to find your average buyer profile persona.
That's the first step after learning. The list of startups which failed because they did not do proper market research is endless.