AITA for telling my teacher to get over her son's death?

I, (16F) am a junior in high school. At the beginning of the school year on my birthday, I lost my father due to lung cancer. My mother had died when I was 6 so losing him as well had/has me in an extremely bad place I'm currently living with my uncle because he's the last living family member I have.

Because I was in such a horrible mindset I couldn't go to school, I've only been to school 14 times out of the whole school year which isn't a lot tbh.

I have this teacher who teaches math for my 5th period I'll call her A (65-66F), who NOBODY likes. She's extremely rude and doesn't care about any of the students well beings. Apparently, a bunch of students tried reporting her to the principal or the school board but for some reason, she was let off the hook and all the students that had her were given a 7-page essay as punishment.

Mrs. A knows of my situation, but being the cruel witch she is, she doesn't care. Before Christmas break, I ended up crying in class because I thought it was a good idea to listen to a song I and my dad listened to all the time and memories started flooding in (bruh) and she got mad at me (???) and told me that "everyone ends up dying so I have to just get over it." and started going on a rant on how this generation is so sensitive?? I never told anyone I guess because of the story I heard about the 7-page essays? I didn't want that to be me lolzies. I'm also not good a speaking up against someone, I need to work on that.

Today I went to school for the first time in 3 weeks (slay) and when I entered class today I saw her SOBBING telling the class about her son. Turns out he had died in the Iraq war in 2008 or 2009 or whatever and I guess today his death was hitting harder for her since his birthday is coming up soon. She spent like 20 minutes talking about memories they had and how much he wanted to be like his dad in the military and for a moment I felt really bad for her... but then I didn't. I remembered her words and I told her the same thing she told me. "everyone ends up dying so you have to just get over it." She went quiet for a couple of minutes and the other students looked shocked and a couple chuckled very quietly. She then started screaming saying how I was 'so disrespectful' and how 'I don't care for anyone but myself and she kicked me out and sent me to the principal's office. Of course, I didn't mean what I said because I understand her pain of losing someone but I simply wanted to give her a taste of her own medicine, so she knows how it feels. I got in trouble and have to do detention for it, and my uncle is pretty upset with me, not because I told her that but because I didn't tell him what she said. Some students from my class dmed me laughing about what I did remembering what she said as well and saying how she's a hypocrite (cause she is -_-) but a lot of the other students are telling me how I was out of pocket and that I didn't need to say that. Now I'm having second thoughts... WITA????