The third day on any retreat is often when difficulties or distractions start to arise! This is a good point to tune in again with the resolution you made at the beginning of the week and recommit yourself to the vision you have for the week. You may wish to mark your resolve by doing a puja (devotional ritual). One of the practices in our Community is the Threefold puja.
Listen to a talk by Bodhilila describing ritual in Buddhism and then leading a full Threefold puja
Here is the text for the Threefold puja