Is it stupid to drop out now?

Hi,

I’m currently in my fourth year of university - and i’m currently doing an assignment which i’m going to have to hand in late. I’ve requested an extension but I genuinely can’t do this class. I don’t understand it and it’s my honours class, It’s impacting me so much that i’m debating dropping out.

Would it be foolish of me to do so?

EDIT: I just wanted to say thank you to everyone who motivated me to keep going, I actually ended up passing the assignment with 58% which isn’t the best but i’ll take 18% above the pass mark any-day of the week!