Complete newbie accepted to Peerfly and trying his first campaigns

Hey guys,

I am a complete newbie, i've beed reading a lot for weekes now (most of what i learned is thanks to WF so thanks guys)

Finally i decided to act, i got accepted to Peerfly, and deposited 50$ into 7search (just to try cpa at first, learn basics)

I knew that at first i'm going to lose somey money but i'll be able to optimize the campaigns to focus on what is converting.

I created 2 campaigns, 15 keywords each, set 5$ each because i wanted to focus on optimizing first.

One was about free computer hardware and second is a small food gift card (figured it'd be more realistic...) both are email submits that convert on first page.

Now - nothing converts... got 40 clicks on each campaign.

I know in order to earn profit at all i supposed to block bad traffic from 7search, but how to seperate it when right now i got no convertions

both offers have CR - 15% by peerfly

They click on the ads so the offers just don't convert in this enviroment and should change them?

Or i simply don't know something yet and did it all wrong?

After how many clicks without single convertion should i usually abandon the keyword/campaign?