You're not getting a statistically significant volume of clicks to make any decisions. Don't raise CPC too much until you know your exact CPA/conversion rate fo

You're not getting a statistically significant volume of clicks to make any decisions. Don't raise CPC too much until you know your exact CPA/conversion rate for that traffic source, you'll be burning money. It seems that your campaign is poorly organized- you need to start with broader keywords to get more volume and then zero in on the profitable/high CTR keyphrases. Be sure to try the content network as well, way more volume there.