Thank you, Saphi! I'm better already... it was just a bit of a shock because I couldn't imagine her to quit. But I'm getting over it, and we will find a new way.
Glad to hear you passed the second exam.
Do retry the first one, please!
Go to that prof if you can't log in, don't let any formalities get in your way. Do some more learning, take some time for recreation when you need it, and be sure to get enough sleep! I know I'm repeating myself as this is always my advice when someone is facing an exam, but that's because it's true: Sleep is an amazing assistance in learning things! What seems inscrutable in the evening often appears all clear and easy after some good sleep.
Best of luck and cheers!
Markus