Nitzavim - Making Fences For Ourselves

We are told to use tricks to do battle with our Yetzer Harah. Avos DiRabbi Noson says Hashem explaining in the Parsha why the troubles that will befall the Jewish people befell them is an example of a fence. The Torah telling us to distance from Arayos is a fence. What fences around our weak spots can we make in our own lives to keep us out of trouble?Have a K'Sivah V'Chasimah Tovah and a Good Shabbos