the best way is to do surveys regularly. You get 1 survey daily but on specific time only.
once you complete a survey you will come to know at what time you should click.
they are the best possible i found.
i was having the same problem when i was new at the site, but got best way to earn.
you wont believe, i made 5 $ or little more or less in near about 6 0r 7 months , but as i started doing SSI surveys,
i cashout once per month now, you can see the change.