((granite))) as my therapist tells me, begin where you are.
You're already jumping ahead to the week she will be away....just go tomorrow and be there and let that happen; grab hold of it while it's there and make the most use of it. Start anywhere. Maybe start by telling her that there is a lot you want to tell her, and that you're worried about having another horrific week while she's away, then just jump in anywhere and tell her about your week.