Hair help 🥺

Hello everyone.

My SIL is a hair dresser and the other night I had her give me highlights. She went to tone it and accidentally used blonde hair dye 😔🙄 it was okay, somewhat, at first but I’ve washed it twice since then and it’s starting to look all blotchy and weird. Idk what to do with it. Any suggestions? I was trying to get this type of look

But ended up with this look...

My hair was like this before she touched it