To think fresh you need to be free of all impressions. Let go of all impressions right this moment and be hollow and empty. When you hear a word, the sound conveys the meaning instantaneously. Similarly, the knowledge that you are sitting, standing or talking needs neither confirmation nor proof.
Just an intention to be free makes you free right away. Realization that freedom is your very nature brings enormous Shakti (energy). Forget about this knowledge sheet and be fresh!