I probably disagree: Having some mental break downs is ok and you have to deal with it cuz life doesn't stop for your tears! You can cry and sob and eat a whole jar of ice cream then go ahead and study ur ass off !
Cuz if you have dreams, you'll regret not pursuing them because you were sad at that moment and believe it or not IT'S GONNA MAKE YOU MORE SAD & the cycle repeats.
You have to make your self feel worthy! If academic achievement matters to you then probably getting a good grade is going to make u feel a little bit better.. instead of crying all night and coming next day to fail and cry more
Ofc we all break down mentally at some point, but nah that shouldn't be the norm.