That may work for about a week, but then your autopilot brain and old habits take control of once again. Attempt writing brand-new notes to yourself; add range or make them funny. That method they'll stick to you longer. You might attempt a series of "If this, then that" messages to produce easy reminders to move into the deliberate brain.
Or, "If phone rings, take a breath before responding to." Each intentional action to shift into mindfulness will enhance your intentional brain. Some Basic Meditations A Basic Meditation for Beginners The first thing to clarify: What we're doing here is...