Every licensed operator must offer control tools: deposit, loss and stake limits; session reminders; short 'time-out' breaks; and full self-exclusion that closes the account for months or years. National schemes extend this across the whole market at once — GAMSTOP in the UK excludes you from every licensed operator with one registration, and blocking software like Gamban covers sites the schemes miss.
The honest framing: these are not tools for 'problem gamblers' only. Deposit limits set on a calm day are cheap insurance against a tilted evening; a time-out after a bad run is bankroll management for the mind. If betting has stopped feeling like entertainment — chasing losses, hiding stakes, betting money that had a job — the tools above plus free confidential helplines are the correct next bet.
Setting a £100 monthly deposit limit takes two minutes in account settings. It cannot be raised in the heat of the moment: increases only take effect after a cooling-off period — the entire point.