Inner peace

It's not even exactly half way through the week and yet I'm feeling so exhausted. Can't wait for this week to end so that I can have a deserving good rest. I've been losing focus rather easily during lesson these few days. I'm always pondering about things , about why people react this way, how can people have temper of extreme ends or how can people criticise without feeling a tinge of guilt. How can someone get treated so badly when all they do is hope for the best for others? How can teachers expect students to complete their work on time when we have 7/8 subjects to manage whereas they only have one. How is our attire affecting our studies ? There are so many questions I need an answer to.