That's the first thing to consider when using your spare money into gambling, taking it into the account that it should be considered as lose or money that can afford to let go, something like a payment for your chosen entetainment, though if luck permits then you may earn something decent but you should have that good insight that risk is behind and whatever will happen you should accept the outcome to avoid losing control and get addicted.
It is that we must see that when we risk the money we have left over or from discretionary income, it is a thousand times better to put it in BTC than in playing, although Sometimes it is necessary to play to distract ourselves, sometimes we must valuate what is best for us, currently the market goes up and down, if it goes down it is good to buy some BTC to be able to accumulate , and if the price is high, one decides if it is convenient to risk about 5-7 USD to play.