Before you play
Set the stopping point while the decision is still calm
Choose the maximum amount of money and time you are prepared to spend before opening a casino. Both limits should fit around rent, bills, food, savings, work, sleep and ordinary plans. Money assigned to any of those needs is not part of a gambling budget, even when a promotion or recent loss makes another deposit feel urgent.
Write down the stop time and spending limit somewhere separate from the casino screen. Decide what ends the session, such as reaching either limit, feeling frustrated, increasing a stake to recover money or switching sites to keep playing. A boundary works best when it describes an action you will take, not a promise to decide again later.
Keep the purpose modest. A casino session is entertainment with a fixed cost, not a financial plan or a test of persistence. If the amount would feel uncomfortable as the full cost of the evening, reduce it before starting. If no comfortable amount exists, do not play.