Is it worth it?

I have an Asus E410 laptop that i need for University. But my sister dropped her cup onto it and broke the screen. Just over half of it is gone. Is it worth fixing? If so how much roughly would it cost?
Do i just get a new one instead?

The only problem is my parents bought me it for Christmas and they don't know about it so i would prefer if it stays this way. But i live with them so i would need to try and sneak my old one out to get it fixed or try and sneak a new one in and get rid of my old one
Is it worth it?
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