The Mind is never blank, if it were, how could you know?
When you feel bad, “change the channel” in the mind, of your thoughts and activity to something good : )
“Every day, think as you wake up, today I am fortunate to be alive, I have a precious human life, I am not going to waste it. I am going to use all my energies to develop myself, to expand my heart out to others; to achieve enlightenment for the benefit of all beings. I am going to have kind thoughts towards others, I am not going to get angry or think badly about others. I am going to benefit others as much as I can.”
― Dalai Lama XIV