My test is around May 15th, which is in three months! If I want a 5, should I start preparing now or do I still have time to procrastinate?
For every exam that I’ve gotten a 4/5 for, I started about right now in the year. If you want, the Barron’s review books (I think princeton too) have a timeline in them for studying.
Did you get an exemption/alternate date for the May 5 exam date for Human Geography?
Have you been preparing all year by taking the class at school?
You should be preparing by doing well in the class. If the class is of good quality (as in, historically in that class at your school, A students tend to earn 5 scores on the AP exam), you should not need any additional preparation.