Please help me make up a short message. The general content is sent to the teacher. This course was retaken, and then I basically didn't take it. I texted my teacher that she didn't want it.

Dear teacher, I'm sorry I didn't attend your wonderful class due to physical reasons, but I must study hard from my roommate after class. Please don't let me down. And I have finished my homework for a long time. I wonder when you will have time. I'll send it to you myself. Thank you, dear teacher.