One of the most damaging things in a person's life may be an abusive or manipulative relationship. The people whom we are closest to and depend on the most can also be some of the biggest obstacles in achieving happiness or finding success.
Relationships with an abusive or manipulative person can be impossible to change if they are unwilling to do so, sometimes it is better to walk away and move on with your on life so that you can grow as a person and reach your full potential. This too may seem difficult or even impossible when it is a parent, spouse, or other significant person in your life.