internal exclusion uni

i was isolated in an room for a day in school due to my attitude toward teacher, that happened in year 9. After few year i have being a nice behave kid and didnt cause any trouble but i have to move school, since the teacher in the new school might not know me much , im scared they possibly mention my discipline record in their reference when i apply in uni and sixth form, will i be ok?

When I was in Year 11 (2019) I was put in isolation for a half day until 4 pm, for something I said about a teacher in private and off school grounds. I said my Maths teacher couldn't teach and she was a bit of a witch, I don't regret my comments, but I wish I just kept it to myself and learned my lesson. I deserved to be punished for being dumb enough to tell a couple of my classmates on social media about this, I should've kept my feelings to myself. I never really got into trouble for anything else in school and my tutor was shocked when he found out I even got a dention, because I never got dententions and I never really misbehaved in class or at least in a way that warranted a detention. Luckily, I was able to move past all that and it didn't affect my college admission.