How to play in a casino without gambling to the point of bankruptcy?

Online casinos have been popular all over the world for more than a decade. Technologies and innovations are actively entering the world of casinos, attracting more and more new users. However, during the existence of such entertainment, many gamblers were so passionate about casino games that they often became bankrupt. You must play properly and establish boundaries to prevent going bankrupt. In addition, it is worth choosing the most suitable casino for yourself to not leave your budget on many unsuitable sites based only on luck. So, what rules should you follow not to become bankrupt and play in online casinos for pleasure?