First of all, try to adjust to the fact that this will be a difficult period. And to survive it, you have to abstract as much as possible from your wife. This will help to avoid conflicts. Although they will still be.
Try to treat her as a neighbor, not as a wife. Talk to her only on business.
Yes, at first it will be difficult and unusual. But it is necessary in order to save your nerves.
Do not be provoked. If you see a conflict starts, just leave the room.
If possible, spend less time at home.