Help with my last three credits (public speaking)

[JEric]

I am currently taking Sophia's public speaking course and I have 17 days left. I have not finished any of the touchstones yet so it looks like I won't be able to finish this one as grading times are 7-10 days. I was told that I would need to wait for the touchstone to be graded before submitting the next one. I have seen a conflicting post on here saying only the last touchstone is dependent on the other ones. Would I be able to submit the three and wait for all of them and hope that I get the grades right before the end date to submit the last? I also exhausted all the extensions although I was told that i could get another one to get the last touchstone graded. I need the credits before Jan 10. I was also thinking of just dropping it and waiting 30 days but i will be taking it during December where I'm not sure how grading will go with the holidays. Can anyone help me out I would appreciate any ideas.