First & foremost I am a father of 2.
The bad news: The acetone you spilled on the lcd likely has permanently damaged the screen. Acetone is what nail polish remover is and it’s a paint remover. [br]
The good news: It can likely be repaired which would involve probably changing the screen entirely at this point.
The Dad response: The best course of action for you to take Is to tell your parents exactly what happened, accidents happen and while I can’t promise your parents won’t be upset. I will say that I would be a lot more bent out of shape if my son or daughter didn’t tell me about it until I found it.
Tell your parents address the situation and then you will feel better. It will be fine. What are they gonna do? Take away your birthday?
If you have some specific questions about finding a replacement screen or costs on acquiring one let comment back and I’ll locate you some part links.