Hello student,

Hope you are in best of your health.

who told you that  if one does not get a good marks , so he/she is  not a good student. Its wrong to say this as every student is a different individual and have different capabilities , its possible  that one who is good at one subject may not be so good at other subjects but it always the patience that does matter. The whole world will be against you and tell you that you are not good enough but my friend be patient enough and have faith in yourself , this is what that matters , don't allow the world to take decision for you , you should take your own decisions. And if you have faith and patience within yourself you would do wonders!! MARK MY WORD!!

And also wbjee is not only a entrance exam that need to be cleared , there are a lot of entrance exam happening you can give your best in that too like JEE MAINS,NEET, ISER, ICAR , OJEE ,OUAT , NEST etc.