Be firm with what you desire in having healthy, respectable relationships. This is the step that requires steadfast will. Family members or close friends may give you resistance when you try to stay steadfast against their unhealthy patterns of trying to pull you in hundreds of directions emotionally, physically, or mentally, but stay true to what you desire and what you are trying to establish them. A health boundary is not easily established especially if its been years since living within healthy scenarios.
Try to be patient when dealing with those around you who do not understand that your trying to establish a better way of life. Stick to your beliefs and how you want to live your life now that you recognize healthy boundaries are essential. Be encouraged that you can establish healthy ways of living and take control of your life and personal relationships. If you have come from a family that had a deep lack or respect for one another and lacked boundaries in their relationships with one another, i advise you to read the book " Boundaries" by Cloud and Townsend.