Me too I made a sale!

Well, $2 up, no matter how you look at it, is profit - So well done, 1 sale in 180 clicks isn't so bad either.

I've had worse than that, though by testing different variations of your advert, you could certainly work on improving that ratio.

Please note, I've not really tested FB advertising so I'm no expert on this.

Depending, naturally, how much you have to spend and test, assuming you don't have a great deal to throw at this, I'd ditch the other 8 products and hit the one that's converted. In all honesty though, if it were me, I'd throw a bit more at the others too, to see where they convert but I would want to be split testing different ads.

To be honest, with a limited budget (forgive me if you have a ton of cash to chuck at this, I'm making assumptions ) I'd focus on that one product for now and see what profit you get spending that $130, only on that product that converted. I'd then, assuming I'm in profit, ramp that one up and then look at expanding into other products then.

I'd say the emphasis here is on focusing your attention to promoting one project and don't spread yourself too thin.

Was it one advertisement pointing to 9 products? What if you ran an ad pointing to the one product you actually sold?

So put up a relevant subject blog. WP is free, after all.