EDIT: In a serious answer to your question; Yes... Clickbank, and other affiliate programs, work for people. If you've been at this for 5 months, what have you got to show for it? Do you have any website(s) which you would like to share here so maybe we could offer some helpful advice? Or what you have tried to do to generate traffic, etc. You give not a single shred of detail whatsoever.
In April 2008 the State of New York inserted an item in the state budget asserting sales tax jurisdiction over Amazon.com sales to residents of New York, based on the existence of affiliate links from New York–based websites to Amazon. The state asserts that even one such affiliate constitutes Amazon having a business presence in the state, and is sufficient to allow New York to tax all Amazon sales to state residents. Amazon challenged the amendment and lost at the trial level in January 2009. The case is currently making its way through the New York appeals courts.