Oh, you poor thing Sarah! My heart goes out to you, it really does.
My school went bankrupt last year, so they couldn't afford to get more staff or pay my teacher to do the proper amount of lessons - she's head of RE and Philosophy, and teaches both subjects at A Level, GCSE and Year 9. Anyway, as a result we ended up only having three hours a week instead of five, the AS class got two instead of five and the other classes had cover staff almost every week. It was a fucking joke. As a result, we had to choose which parts of the syllabus to actually do because we physically didn't have time to do it all, but luckily our teacher isn't the cunt-face yours clearly is and she did two of four topics in detail and glanced over one and left another, which worked out alright in the end.