GL says:

sometimes when u work hard for something

no matter how much of time u have been dedicated for it,

no matter how sincere u are,

no matter how bla bla bla.......

it doesnt mean that u will achieve what u desperately wanted at the end...

anyhow, it applies to everything, such as love, frendship n study as well...

try and learn to accept it calmly then..

TAKDIR TUHAN!