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The 'shoulds' in your head can make you feel bad about yourself. Don't allow a 'should' to be in your head unless you've made a conscious commitment. You need a system for managing all your internal voices' demands: a way to listen seriously to the nagging imperatives of your brain, and decide whether to either act on, schedule or incubate those ideas. This is a system you can use to effectively eliminate the procrastination habit.