Hii..i am a indian student studying in 12th class-recently i lost my lover as he died in a bike accident?

Losing someone you are in love with, really affects a teenager. Now, you don't have to reveal anything to your parents. In fact, anybody in your position would be affected the same way and it is really hard to concentrate. Just tell your parents that there is something wrong with you and you may not do well in the examinations. Just ask for their permission to skip this examination and write the supplementary examination so as to score good marks. Maybe they will understand. You will get over it in another month. No motivation will work considering your present mental status. Just appear for the supplementary examination. It is left to you to convince your parents about it.