I usually put on a pop bible and get to work

I rewrite my notes a day or two before the test and then just picture them in my head as I'm taking it.

(don't do this if your memory isn't amazing)

in a more math/problem oriented class, then practice problems a few hours.

What worked for me,starting from my second year in College, was to read my notes when I woke up and when I would go to sleep, a week before the exams I had to pass.Before that, I used to learn everything by heart because I have a good memory but it was difficult and very time consuming! The "twice a day" method is more efficient, all in all, even if it has probably costed me 1 or 2 points by exams.

I'm terrible at getting myself to study. Taking two exams tomorrow and I'm sitting here browsing ATRL and watching Stranger Things. I'm one of those "okay, in an hour" people.

Waiting until the day before then cram it in. I rarely study and I know if I did I would be an A student instead of a B one.

My habit is doing none

No.