>You switch off your mobile phone, disable your email, take the phone off the hook. Put a bottle of water and a cookie next to you. You forget about your laundry, about people – good and bad – that you may need to deal with and all your future problems/dilemmas/plans. You focus on your thinking and make space for yourself in your head without all the aforementioned distractions. So that you can hear yourself. Then push those keys or move that pen and WRITE and do not worry about it being perfect.
It also REALLY helps if a friend or partner actually forces you to do these things!