AITA for still holding onto the fact that my mother tried to kick me out eight years ago and keeping that over her head?

For context: This happened around 2018-2019 when I was still around the age of seventeen, so technically still a minor under my mother's care. Most teenagers have their phase of being on the rebellious side, but mine was never drinking or drugs or anything like that. Mine was more along the lines of being mouthier and opinionated. I always had that issue of getting into trouble with my mouth since I was a child and it was no better in those years.

One day it went something along the lines of her bickering about something small which had me upset and made me get mad and start voicing opinions. She started to do the tears and guilt tripping, realizing I wasn't responding to it before she just said "That's it! If this is how you're going to be, then I want you out of the house." I told her I was still a child and asked where she wanted me to do go ajd to my face she said "I don't care, but you can't stay here."

Although she didn't that day, I had paranoia for weeks after that she was just going to throw me out for that. It didn't happen after that and I stayed home, but the memory of the threat of that never left my head. And there are times where out of frustration, I have brought it back up and reminded her in verbatim everything she said. Which she denies and says I'm daramatizing it and she "was just was gonna make my dad's parents come get me." I repeatedly reminded her that she did NOT mention that and that she said she didn't care where I ended up and she says that too was being taken out of context, and that "it's like when you tell your sibling in a fight that 'they're so dead' but you're just mad."

I know what I heard because I was there and took it all, but I'm being told it's ridiculous to hold onto that. And then there's the guilt tripping of "oh, I must be the worst mother because you hold this against me and you can tell your future therapist how horrible I was." So I don't know what to think.