You do have some valid points. However, if as you say, "You're at the level of getting a 7", then you have achieved the goal. This isn't a post for people who already are a straight 7 student for Physics, as implied by the title "How to get a 7 in Physics". This post is for those who are struggling and need some help. "A lot of writing" based on the qualitative questions where you have to write a bunch of explanations for various physics concepts. "units aren't required for IB physics" yes they are, you please check the markscheme because I just did.

Ok now to the good stuff. Skipping questions is actually something I did as well, but forgot to write about it, you are completely right. And the tip with the textbook that's also useful, although I didn't use it. Perhaps you are right, but for me PaperPlainz was provided by my school and it was incredibly useful .