While I have not been in this position myself, I watched my wife leave a high profile corporate job. She needed a period just like you are describing where she did various things to mentally prepare for the next chapter in her life.
She also had to figure out what business she will start, you already know what your business will be, but still have to face the challenges of growing it in a challenging environment.
Take time to decompress, put your life and mind in order and when you are ready you will succeed in growing your business.
Do you remember how long your wife took?
I was talking to a colleague today and this happened to him ten years ago and he took seven months off. That is crazy!
She was planning to take six months off, but I think she took less time before she actually started starting a few business and it took her a year to settle on what her primary business will be.