i do gambling affiliate and just now all my affiliates spend bitcoins like crazy
Do you mean fortunejack on your signature or other sites? It seems that they spend bitcoin a lot and you earn more money from them, haha, congrats.
To OP:
How does bitcoin price fluctuation effects your gambling?
I don't buy bitcoin now and I still have some, I bet those 8 coins and that's enough for sports betting.
Can this fluctuation be considered as kind of gambling as well?
Yes, trading, speculating is also a kind of gambling as well.