Houben, yes please post the URL so we can get a general idea of your landing page.
As Marty says, you might be experienced in aff. marketing but not necessary will that means that you can manage sites out of your niche successfully. However, we all start at some point to grow and be successful. So I think you can be successful, it is sometimes small and little things that can make a difference.
I think that your traffic is tremendous, so you have the potentials to be a successful affiliate in the gambling industry.
Wish you the best of luck.
Cheers,
Melanie