As for your mom, don't beat yourself up that you forget that she was arriving yesterday. You've had a lot on your plate. You'll have the opportunity to see her when you return. No, you aren't a bad daughter...it's just that she doesn't understand what you are dealing with.
Enjoy!
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.