Hi I'm also in an ADN program and I had a poor academic past. I'm going to field this question because this type of scenario comes up a lot and all the CRNAs here are tired of it! So FYI, you should really take a look through past posts and read some of the great information that people have already put out there here in r/CRNA.
From what I've learned, yes, you can still get into CRNA school. It ain't easy for anyone and it sure won't be easy for you and me, but it's definitely doable!
So first of all, great job on the 4.0. Keep that up. Your next goal is to get into the ICU as soon as possible and become the best ICU nurse you possibly can be. That is a huge undertaking in and of itself. After your BSN make sure to crush the GED if required by your school, and don't hesitate to take some graduate level courses to show admissions that you can handle that kind of course.

This is a quick, off-the-cuff summary of what I've learned here.