Your next step is simple. You are the first domino.
Multi-tasking is merely the opportunity to screw up more than one thing at a time.
Until my ONE thing is done, everything else is a distraction.
All great achievements are the result of sustained focus over time-all of them.
You'd be hard pressed to find elite achievers who don't have coaches helping them in key areas of their life.
Your work life is divided into two distinct areas - what matters most and everything else. You will have to take what matters to the extremes and be okay with what happens to the rest. Professional success requires it.