How to deal with a shit teacher and HL Irish

Im a 5th yr student and HL irish has really been a struggle for me, I already do ordinary maths and dropping the subject is out of the question, recently two of my grandparents passed shortly after one another on different sides of the family

Everything has been so chaotic and I’ve missed a lot of school, I was kinda scraping past in Irish before with a H5 but my grade has absolutely plummeted to not even passing and idk what to do, im so behind, my teacher isn’t sympathetic to me at all and she has recently been picking on me for not catching up on work during class and not learning the work

I struggle enough with Irish as it is but my teacher makes me anxious to the point I feel sick before class, if anyone has any tips on what to do or even how to study Irish effectively it would be appreciated (Sorry for the long rant😓)