I need teacher advise😂😂

So I'm in high school. Usually when we have to write an essay we have to bring our rough draft in to discuss in our groups and she gives us credit for basically doing it. 
I've been super sick this past week so for my rough draft I basically copied and pasted the whole thing off the internet. I never thought of turning it in because she never does. 
But this time she collected it. 
It isn't even an essay. 
don't even know what it is I put in my paper, but I do know it is plagiarism. 
If she starts to type in a sentence the whole thing will pop up. I know that they can put on your transcript that I plagiarized and what if I never get into college...
 I'm literally freaking out. I never meant to actually take someone else's words and put my name on it and turn it in like that I just needed to put something down because there was no way I was going to be able to do it with a fever and nausea.
I don't know what's worse, coming clean or just waiting to see if she notices.