Why don't you just sit on the email for the weekend and when you feel like it next week, you can respond (that is, if you feel like it)? Nothing says you need to respond right away. After all, you are living your own life and have been busy at work and you do need some time to decompress.
Bea, I chucked over your response.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.