Being mindful v/s humming v/s being blank.

I just realized that I often hum songs, feel like dancing and at other times, I simply go blank... not realizing that all these are manifestations of me wasting time.

I need to be careful,  be more mindful and be more vigilant towards these behaviors of mine.

Also, I'm waiting for my marksheet for Mains 2019. Why doesn't UPSC furnish the marksheets sooner?