If this is really about to be the biggest stressor, I think we need to talk about prep work before it arrives. I'm not sure not thinking about it is the best plan. Doing nothing may leave you as a victim...I'm thinking this may be currently affecting your sleep, eating, constant flood of negative thinking, taking your attention away from all the things you learned that are healthy for you..etc. It is already I'm guessing taking its toll on you.

So my advice is not to distract but face it head on with your professional team and other support people.