Pet Sematary (1989 ver) honestly got to me when I was younger. I was a huge animal kid and had a cat of my own, so i kind of watched the movie thinking It wouldn't be that bad but all the violence, disturbing storyline, etc, made me go to bed and waking up due to nightmare's.

run the gauntlet (dies)

The Internet, I guess...

warrior cats lol

Coraline (movie), and also Meow by Cyriak (song/animated mv; cw, it's got unsettling imagery and themes).

Why did my parents think a 6 yr old could watch that.

I watched That 70s Show in 2nd grade. It wasn't scary but too mature for me at the time.

Lil Miss Rarity. Didn't scare me, but I won't explain further about it. ^^;

ROBLOX Fluttershys Lovely home.... ROBLOX Derpys Muffin-Tastic-Day.....

I watched Demon Slayer at like age 9 or 10, can’t remember, my siblings are younger than me though and they watched it as well (Both in the single digits)
We watched Attack on Titan and JJBA too but that was a couple months ago and because of my brother, who’s younger than my sister. My brother and I also read the Chainsaw Man manga he bought but I had to confiscate it from him because of volume three
I haven’t really gotten scared by any of that though, compared to when I was 8 and younger

i watched a gameplay of south park when i was in 4th grade

Skyrim. Didn't frighten me really, but I was several years below the age rating when I played it.

(I could give more serious examples, because I was on the Internet way too young, but they aren't in the Halloween spirit.)

i wouldn't say i was really "too young" as such i just shouldn't have kept on looking, but when i was 11 FNaF had just been released and everyone was talking about it so i watched my friends playing it at school and it scared me so badly that i had to sleep with the light on for weeks bc of how paranoid i was that freddy fax bear would show up... in the end i got over my fear by drawing all of the animatronics as on-model as possible