In every life some tragedy falls.  It does no good to bemoan your fate.  Some people die, get sick, have accidents.  Life is not fair.  It does no good to compare yourself with others.  You deal with the “cards dealt you”.  That is all you can do.  Every life has tragedy.  There is no way to get around that.  Each life has problems.  You should be grateful.  Life is, indeed, very precious and all you can do is deal with your unique set of problems.  And how you face them will determines your character.  We are all tempered by the crucible of fire.