None! Whatever that's meant to mean. Studies show that more often than not, monitoring one's performance has an adverse effect. Maybe there's a magic pill somewhere ...
"And do not curse those who call on other than GOD, lest they blaspheme and curse GOD, out of ignorance. We have adorned the works of every group in their eyes. Ultimately, they return to their Lord, then He informs them of everything they had done." (Qur'an 6:108)