wasting time makes me angry

I think that time is very precious

if time passed was gone it's it can never be back to me

here are a couple of examples
first
when I have a plan to hang out that hanging out with my friends if one of them is late, I feel so bad because I am a punctual person. he was late I feel so bad

I am punctual person

the other instance is that
if I fall asleep while studying sleep in the studying, I feel upset to me