ya'h'ooed...You don't need to rehearse. When it's time, the right words will come.
Keep one thing in mind now, no matter what happens: Nature abhors a vacuum. So if something leaves your life, all you have to do is prepare for what comes next. Sure it sounds easy -- it is.
You can try to do this entirely on your own, but relationships will need tending somehow. Be a responsible partner and deal with the problems you are facing. Working together is more productive than working alone. Family members are depending on you to either deal with the situation at hand or find another solution. When you work hard at something, it may not turn out as you planned, but the result may be just as good -- or even better.