negative!

why n why n why n why.................!
why must everybody think negatively?
answer me,please guys...
why?
is it something that we MUST do in our daily life?
in every hours?
in every minutes?
in every seconds?

is it worth anything if we think such that dumb way?
is everything that happen gonna yield a negative product?
or the source is come from negative connection?
or the medium itself is negative?
i dont really understand!!!
why is this negative thinking should be legal in this meaningful life?
or it comes just wanna make this life meaningless?
please guys,answer me!!!!!!!!!!!