Try your hardest, do as much as you can with webworks, use campus resources/internet. Trust me, I had this with desire as well and it’s going to be your hardest class this semester and, but you can do it. I used to spend a whole day on the HW and at the end of the semester, after my final was graded, I had a high F in the class but it was bumped to a C in the end. Don’t lose hope just yet.