I cried today

So, I don't understand Slopes, or how to get the numbers for y=mx+b for math class. So I tried getting help from the substitute teacher, who continuously ignored me, and then I had to go for my Picture, because it was Picture Day today, so my makeup probably looks like shit in that picture, and I am going to hate it, and I love math class. That stupid ass substitute chose to ignore me, then kept asking "hey does anyone need help with anything" and when I would mention it just went "I mean with what we are doing now" I don't understand what you did before how will I understand the Homework at all???? And I was too exhausted mentally to do anything else today. How was everyone else's day?