realizing the life

I mean to say that one or two lives are not fair, but taken as a whole
is always fair. If someone is "innocent,hard working,and still
frustrated, in trouble,not getting results", then that person must have
commited evil works in their previous births !!!

That's the only reason and possibility.
You don't trust god/nature/fairness or need some evidences. Please
click here...right click n open in other window/tab
  .....and then here.