Homework Copier

So there’s this girl in one of my classes who is ALWAYS asking me to send her my homework.

I get that it's a hard class and I'm kind of struggling in it a little bit, too, but I’m putting in real effort and I’m getting tired of always sending her my work.

So anyways, as per usual, she texted me again today and asked if I had figured out the homework. I replied hesitantly a few hours later saying that I kind of figured it out and she immediately asked me to send it to her.

How do I say "no" nicely?

**EDIT: I didn’t reply to her last text and texted me again saying, "Can you just send it”