You should prepare your marriage with a healthy heart.

You need to prepare your marriage rather than your wedding.  One of the most important things in marriage preparation is to heal the wounds in you.  Not only you should heal your wounds for yourself but also for your future spouse.  Especially you must heal your wounds that you received from your parents when you were growing up.  In order to do that, you must forgive your parents in your heart just as God forgave you in Jesus Christ.  You must prepare your marriage with the healthy heart.