A human time-bomb

We have to take responsibilities as big as we can carry,not more.
Psychologists warn us to carry greater responsibilities than our natural ability to achieve. In our daily life we've lots of duties to fulfill and roles to play like :
your role towards parents,brothers,sisters and relatives at home
towards teachers and class mates in addition to studying at school
towards your society after graduation and during military service
towards yourself to build it and to plan to get marry
your role when you become a husband,a father and an uncle
towards your boss,colleagues and clients at work
so, our roles and responsibilities haven't an end till the end of life
But a difference still existing between the foolish and the wise.
The foolish assumes he is a hero who can carries tons of loads and
plays all roles all time effectively.
That can't last for long.One day he'll blow up like a time-bomb
The wise balances his roles,knows what's first-what's next .
Always we ask about happiness and sadness ignoring that those are the real reasons.