Be silly, be cringe, whatever they call it. My time at school can be 'cringe'.
There's is absolutely nothing wrong with you, its being yourself, and if people call it cringe, then it doesn't matter. Because frankly, anything can be 'cringe', its just how you see it.
Nobody remembers anything in the past about yourself, everybody is focused on what's next up for them, so you pondering over this, is really a bad idea.
Move on, be happy, be 'cringe' (honestly, what a word!), whatever you call it, and smile. And that is all you need.
If you think certain things you did were an issue,,learn from the experience and move on.