I’m planning on taking a practice test for each one to decide which one I’m better at and thus which one I should focus on.
Pretty straightforward question: Should I study or just take it right on the spot?
Also should I take these practice tests in person or will I be fine if I just do online practice tests?
Just take them both. Print them off to simulate real test conditions. Put the pages in a binder if you want to make page turning easier. print off real answer documents. Don’t bother studying because (I’m guessing) this is the first time you are taking either, so you will be able to study more efficiently once you have taken a practice ( you will focus your topics of study). Once you have taken both, begin more rigorous practice on the test your scored higher on.