[...] This happened to many times when I already have huge profit such as x2 to x5 of my bankroll. I usually hangout out for more gambling but place only small bet on slot games. This small bet turns into increasing bet when losing badly u til I already buying bonus that keep losing too until I bust all my bankroll. [...]
That's the need for basic knowledge about gambling & casinos, have you ever heard "the house never loses" or "the house always wins"?
No matter how much we win our bets, or how much we have multiplied our bankroll, we will definitely come back again. So, don't use betting as a way to make a living, especially if you deposit money that you are not willing to lose. I usually implement the habit of stopping after x2 of bets (live casino or slots), when it comes to sports betting i usually only bet on important matches.