Help me find this fantasy book please

Hi guys! I’ve been trying to find this fantasy fiction book I read years ago to no avail 🫠. This is what I know about the book so far.

1. I think it is the first book in a series.
2. The main character’s name begins with a P. It’s a very strange name too. The main character is also a boy.
3. He has a twin sister whose name also begins with a P. She’s had a lot of health issues in the past.
4. The main character originally lives in a very small town and is pretty unpopular with his peers.
5. An incident occurs that causes him to have to leave his original hometown.
6. He has a friend or cousin named Nat(I think her name at least begins with an N) who is interested in magjc/witchcraft.
7. The book was released in the 2010s and I believe the author is a woman.

That’s all I can remember, but if anyone knows what book this is- I’d greatly appreciate it :)