Ok so I just reread Chapter 17 and Chapter 20 to see if I can fix my huge mistake regarding Rose's age (she's supposed to be 15 in fourth year) and I'm stuck/torn.

How am I going to fix this without removing an entire chapter?! I need help, ASAP. So far I came up with 2 options:

Option 1:

Make Rosella/Rose 15 instead of 16 and remove chapter 20 and rewrite the ENTIRE chapter 17. Which will be painful, btw.

OR

Option 2:

Fix her age in the character bio and make it so that she started her first year at the age of 12, which wouldn't make sense cuz that would make her a year behind all of the other students. BUT it would save chapters 17 and 20 from being deleted/remodelled and save me a huge chunk of time, therefore giving me the option to write chapter 21 today (after refreshing myself with the 3rd HP book, of course, to avoid any future mistakes). Also, it would make sense (sort of) since school starts on September 1st and her birthday is on the 31st of October (All Hallows' Eve/Samhein) that she starts off that late. I think. I don't know, help meeeeee!

So I ask of you, dear readers, to please answer me TODAY of your choice.

Option 1

OR

Option 2

OR

Comment here for your own solution to the problem. 

Don't comment now. Issue has been fixed.