Many  people  told  me  that  they  can't  find  their  ways,they  don't  know  their  future  that  made  them sad.  They  always  feel  sad  without  reason.It  may  happen  to  many  youngers,in  my  opinion.Yes,when  we first enter university  ,we  have  too  much  thoughts.even  someone  are  not  satisfied with  their  speciality  or their university.but  the  way  is  that.you  have  no  choice..just  adjust  to  it..raise  your  habbit.I consider the  most difficult thing is to know  youself..your  advantage  and  disadvantage..especially  your  advantage..........too  many  people don't have self-confidance..It's  a  pity.which  make  people  unhappy..and  more and more  useless.find  your  way..no matter  how  hard  it  is~it may be  wrong..but  you  should  have  a try,then  you  will  know..