What is the smart way then? Just roll and let the flow guide you? That is the worst thing to happen in gambling. If you let yourself unguard and just go with the flow, you will end up losing all your money even all your savings and properties. Gambling in a smart way means thinking of approach where you will be less affected if eve thing does not go with what we wanted. So planning stuff before hand is the best thing and setting limitation to yourself is one of it.