cs practical (grade 12)

ye jo mass produced projects hote hai (library management system types), inse marks mil jaate hai? my teacher says she's not going to help with my marks at all and everything, bda ganda sunaya hai. is it really that big a deal or will it be fine?

be truthful please, if it really won't help me score i can change up my code to some half assed original project. just really concerned w how much got shamed today, cried in class because of how bad it was.