{{{Nora}}} Love you.
You're under a lot of stress. You just bought a house. You're trying to be a grown-up. You've got work issues. It's okay to be feeling like this. It's okay. There's nothing wrong with you. Deep breaths...maybe promise yourself that if your brain/chemistry/stress/whatever gets you through the meeting, you will let it cry all it wants once you're home. It might help.
Remember you're loved and valuable and important and it's okay.