Gambling can become an addiction. It is restricted to adults of legal age in each province. If it has stopped being entertainment, stopping is the right call.
Signs worth taking seriously: staking money set aside for something else, chasing losses with bigger bets, hiding what you have spent from people close to you, and needing larger deposits to feel the same interest.
Every serious operator offers deposit limits, loss limits, cooling-off periods and self-exclusion. Setting a deposit limit before you start works better than trying to stop afterwards.
Support in Canada: ConnexOntario on 1-866-531-2600 (free, confidential, 24/7), the Responsible Gambling Council, and the problem-gambling service run by your own province's health authority.