MARK 11:24-25
24 For this reason I tell you: When you pray and ask for something, believe that you have received it, and you will be given whatever you ask for. 25 And when you stand and pray, forgive anything you may have against anyone, so that your Father in heaven will forgive the wrongs you have done. ”
You can be sure that when you pray, God hears and will answer. Remember, though, that before you pray, you must have offered forgiveness to anyone who has offended you; only then will God forgive your offences. We are all reminded in Scripture passages in Mark 11:24,25.