Laura, I'm quite new to HP, and so I see are you.
My understanding is that you need to give the search engines time to rank your pages up.
I have a blog and it took a year before it started getting Google referrals. Now most of my blog visits are from Google.
Looking at the keywords used to find me, I get a clue of what kind of audience reaches me most. That helps when setting up new tags and keywords, to show up on the correct searches.
However, if people don't click on the ads I don't think we'll make much money on HP, so try to use Amazon and EBay capsules to your best advantage, trying to make the reader click on them.