Gambling isn't bad, but you need to know your limits. Don't gamble with money or bitcoins that you need. Put a stop loss level. Gamble only for fun not to earn money. Just my opinion
It is correct and if one keeps a control on their gambling habits then it wont be bad for them. They can continue with other livelihood work along with it as well. But if gambling is taking away their time from family and work then of course it is affecting them badly and needs to be checked. It is possible to keep a check on gambling, how one can do that is their own discretion.
to me i think in gambling the most important act is to have control over our emotions , in gambling most of the people lose money because they do not have control over their emotion. it compel us to play again and again. ether we are winning or losing money, in both cases our emotions are responsible for our lost. some time even we make good amount of money in gambling but still become emotional and want to continue gambling and make much more money but in fact we do not remain lucky for every time and in turn lose the winning about as well as our own invested money.