HARD HEARTED ?

assalam u alaikum

has anyone here got a hard heart like me?

i've got a real problem with myself being hard hearted

i just cannot shed a few tears or get emotional when asking for forgivness,thinking of death,grave punishment hell fire..

i say this because i know alot of people who get very emotional and i cannot make out why i aint like that

for example: when a ladys jamaat came in our town i went and towards the end one of the ladys did a dua and everyone was emotional crying in they dua....but i just couldnt cry

then in madressah after durood sharif ( a special time set on thursday night to send durood to our prophet mohammed pbuh) a girl from the khamisa class has to do dua and everyone bes crying..but its the same problem

ive probably most got emotional when my dad got ill..and some times when hes not well thinking of him sets me off...but other than that i feel it a problem

how can u make your heart sensitive?

coz i heard when asking for forgivness u shud shed tears and if not put on a teary face.

is there any certain dua u know that can help?

jazakallah