i am not really a gambler but i do play poker online but no real money involve. i should say that there is nothing wrong about gambling whether you use money or bitcoins as long as you are a wise gambler. you should know where to stop on the right time even if you're losing or winning.
You are losing(most of the time), do you think that is right? NO, right? so basically gambling is not right, you do gambling because you want to earn money(that is why you risk some of yours) thinking that you will earn but the outcome is not what you have expected, so I guess we could call it wrong, and also, it is said on the Bible that gambling is a sin, so that is what it makes more wrong.