Revisit the physical boundaries that you processed yesterday and spend today thinking about where you need to put your boundaries to protect and free yourself. If you know that you are going to face a boundary soon, start with that one, especially if it is a small one. Maybe there is someone at work that you know you are going to have to deal with first thing in the morning. Starting with the small issues will help to build the confidence to deal with the larger issues.
Through out the week start expanding your physical boundaries to the larger issues. Some of them may take some forethought before you deal with them, so that you have realistic expectations, or are ready to deal with surprises that may present themselves.
Our physicality is our most obvious boundary, so it is good to start here as we begin to learn how to deal with boundaries, especially if we haven't really been good with this in the past.
Prayer: Pray that God with give you the strength and wisdom to place boundaries in areas where you have not had them.