I expect that you aren't giving enough time each day to fanslave.
You have to watch for the opportunities all through the day and/or night. I know we can't be awake 24 hours a day but it's a worldwide system, so fanpages could be posted any time. Perhaps you are missing most!
We are not supposed to talk about other sites here, so I can't give any advice. But bear in mind that fanslave is legit, other sites may pay more but often turn out to be scams.
Whatever, it's very difficult to find any legit site that pays more than 3 cents a day! You should make that much here from the youtube videos alone.
How to get rich? There's about 7 billion people on earth trying to do that!