How long does it take to get your Credit score up after you file for bankrupcy ?

Someone I know recently filed for bankruptcy not even a year ago. And she throws it in my face that her Credit Score is higher than mine and that she can get a house and I cant. I dont have anything wrong with My Credit score and never filed for bankruptcy I just have a couple credit cards. Really how long does it take to increase your score? And dont banks look down on people that file?

It takes years to Rebuild Credit, if she gets a house her interest rate will be twice normal.