Hi lolotte! Thanks for the advice. I actually admire your courage in quitting your program - after all, you only have one life, so you shouldn't waste your time doing something that makes you unhappy.
I'm also only a Comp Lit applicant, so I can't tell you anything definitive, but I think your explanation for why you dropped out of school X is a good one, and may just convince the people reading your application that you're serious about it this time. At least you'll definitely have an interesting personal statement! (Unlike mine, which is pretty boring/traditional.)
Your language background seems fine. By having taken a French grad seminar, you'll probably have a leg up in that many applicants straight from undergrad have only taken undergrad seminars. And with your German, you'd probably meet the requirement for having "working knowledge" of a second foreign language at the time of application, like most other applicants. Then again, there are applicants who apply with three or four foreign languages - I guess what I'm trying to say is that your language background is appropriate for Comp Lit but not necessarily a huge advantage. Which is just fine!
Also, about your writing sample: I certainly hope it's okay that you talk about Anna Karenina in translation, as my writing sample includes The Brothers Karamazov in translation! As much as I love languages, Russian is one I have not yet had time to tackle...
Best of luck!