welcome to family life lol, my dad went to one of my parents evenings once in like year 8 when i was about 12 , my english teacher said i needed to improve on a certain area.. you know as they do and ever since then my dad always uses that excuse when i don't do work and says my english teacher says i'm rubbish at english! completely blows it out of context, it was like 3 years ago in a pathetic parents evening that doesn't even matter that greatly. I'd just let it all blow over, your 19 so you should be able to do what you want and lead your own life

maybe try and get in contact with your high school friends again, see where they're at, what they're doing etc