Charmion, you made a big decision that isn't set in stone yet, and I imagine you're viewing a bunch of related parts of the move as one whole huge task. There is a drill - start making lists and put the discrete parts of it in such a way that you don't have to do all of it at once. Feel good about each accomplishment. So what is the first step? Getting this house ready? Starting the house search in Ottawa or nearby? I imagine your family is going to be a big help during the relocation.
Meanwhile, lift with your legs and get a good workout moving all of those books. Bonus - squats are good for the pelvic floor.
Anxiety here in the US is through the roof - it's dry January and probably needs to stay a dry four years because it would be too tempting to self-medicate the entire time. Better to let the anxiety push us toward resistance. I found Dr. Amen's chapter 10 (Happy Nutraceuticals) in You, Happier to be helpful, and have added GABA and L-Tyrosine to my supplements, as needed. L-Tyrosine is found in green tea, so simply drinking more of that can help your mood. I heard this morning that there is an early election of some sort scheduled in Ontario because of the tariff issues threatened by Trump. Green tea for everyone.