"Can you really just move on from something like that?"

No, you would do yourself a disservice to overlook or push away harm done to you because you felt so needy for connection now.

There is a vast difference between parents healing, growing, working hard to improve and making amends, and parents who can sort of toe the line if you don't say anything honest that might bother them.

Your deep desire to make this right no matter the cost to yourself is common. I understand it. But I think you rightly sense that it's not so simple- you'd be sacrificing your sense of self and worth to write off that treatment as being irrelevant because it was in the past.