I think you're not being consistent with it,
Let me guess what you did was this -
Day 1 - promoted on facebook groups till probably day 3 (maybe even facebook warned you abit)
Day 4 - you tried out Pinterest but unfortunately Pinterest traffic doesn't come immediately, it could even take weeks, for it to kick in so you quit
Day 9 - you tried out quora but like a friend said quora will just get you banned as long as you're a newbie trying to promote links, they want you to take time answering people's questions before you start sharing links and even when you start they will still be monitoring you for any affiliate links
Now Here is The deal breaker: you got o gave patience and you have to do it smart.
Patience with Pinterest and quora smart with Facebook. One thing is certain on facebook and quora never post an affiliate link naked, cloth it behind a landing page.
And also just go on YouTube and learn how to promote stuff on this various sites.