I would start providing value in some way (yeah I know, very generic), but think about some way you could help someone in someway. Maybe share your betting tips on twitter, maybe write about topics on bitcoin gambling on a website, or something similar.
Once you get enough people that follow and trust you, you can share your affiliate links (which would be helpful for them anyways as they need places to bet if they are to follow your tips) all you want!
Probably not what you want to hear, but it takes work being able to make money off of affiliate links. I do it, but it has taken a lot of time.