don't listen to them, when something bad happens, there is alot you can to. i know when members of mine family died, i just cried. nobody helped me. so when a... death happens, think about how you'll see them again bullying happens, think how karma will get them back sick family member/friend, think how they will get better, if really sick, think about how everything happens for a reason. bad grades, think of how to improve yourself, dont go around being upset, grades are final. so crying wont help.
Education and life experience. Take your time durning the struggle to figure out the cause and effect. What could be done to help or to improve the situation. Give yourself room to be human and make a mistake, but learn. Pray, listen.