actually from my personal experience, everything you need to know is here on bhw.
i know as a newbie, it is pretty much information overload, but cpa is pretty simple:
you need a webside, a cpa offer and targeted traffic.
how do you get that? well, the webside you obviously buy and build yourself. signup
for cpa companies for cpa offers and last but not least there are thousands of ways
to get traffic.
my advice: take a simple overview like
youtube -> webside -> cpaoffer
seo -> webside -> cpaoffer
facebook -> webside -> cpaoffer
and do some research on it. then start taking action.
of course after being successfull with like youtube -> webside -> cpaoffer, you can
rinse and repeat with a new side or start driving traffic with new methods.
the key to success is take action, work hard, focus and never give up!