Sounds like you had a lot of fun. Is your birthday in early October since you celebrated it this early before your dad leaves?
I'm glad you're having a good time here.
I'm not 100% sure myself about rare items. I joined Windlyn back in July. I found this old Wiki of Windlyn that had some early items (it's not been updated for years):
https://windlyn.fandom.com/wiki/Category:ItemsI think anything listed on here is considered rare. If there's a particular item you're looking for, you could try posting in the Questing & Collecting forum. I popped a quest in there and Lemon kindly donated me my hat and the autumn leaves.