The op-shop plan is working for me, although less so for the friend - she hasn't had things ready for me the last two times, and we've had school holidays in the middle.

And I have real anxiety about getting rid of books. Every single one of them is something that I've selected because I wanted to read it, or I wanted it for someone else to be able to access, and so I'm invested, and getting rid of them is somehow disregarding younger me. And I get that that is irrational, and that I'm not the same person, but I still struggle.

Good luck with the moving of books, and rearranging!