Good for you Maureen

Congrats.
Although I have to say if you talk about "tweak campaigns" and spending 20 bucks to make 7... Maybe you'd wanna try
SEO instead of PPC first? That way your income will be all net profit, and it will repeat itself without new investment or effort.
But thats just my take on it, enjoy yr first succes anyway
And for free CPA cash also check the topic that Bluffspot made on the topic, he talks about
Fr.ee which is a good place to score some CPA dollars easily.