Dear friend.
I believe that you are very disappointed with the result of your examination and I believe that you are right and right to be sad, after all anyone who tried as hard as you would. But I write this letter, to ask that even in the midst of your sadness you should not forget that your chances are not over and that you should not give up on passing this exam because new chances will come and I believe that with your perseverance and determination you will go far in everything I undertake to do. So, I tell you, take your time to be sad, but be resilient, be focused and try to turn things around. This is the best way to solve our problems.
I know it may sound corny, but even a great leader like Prithvi Narayan Shah, suffered defeats and difficulties, but he fought and had his name established in his time as a great man. Follow that example and don't stop fighting.
Best regards,
M.J.