For Paper 1, I would only revise 'obj 1 and 2' points, 'obj 3' wont really come up a lot.
For Paper 2, you should still be remembering the 'obj 1 and 2' from Paper 1, so concentrate on 'obj 3' points, they are the 6-8 mark questions you get in some questions in section B.
What do you mean by obj 1 and 2 etc.
Also, my exams are in May and I just started taking notes will I be fine?
I'm HL so I am trying to not waste time as much as possible, so does the content include mostly SL content than HL?
Should I give SL content more importance?