Jacen
They would have to want your help in order for you to help them, Jacen. And you have other things that need your attention. You cannot help others if you are still actively working on yourself, and I do not mean that offensively. You cannot take the responsibility of attempting to fix this family completely upon yourself. It is impossible. And I would rather you not try to shoulder all of that responsibility.
In order to fix a family, all of the members must be willing to work toward the same goal. It isn't a one-man job, love. You cannot just push people and they will fall into line. If this family is going to be fixed it will take time.
You expect too much out of yourself. And perhaps from others at times.