I'm not a 170 scorer yet, but I have seen a lot of improvement as a result of really taking the time to learn from my mistakes. I started with a similar baseline score, and have since been greatly improving my accuracy+overall score progressively within the past month. I recommend doing the following:

Utilize a physical notebook as a wrong answer journal, and provide very detailed notes on what you did wrong as well as your solution, use the video explanations from 7sage to help guide you. As I mentioned, you need to really take careful time when doing this. Don't just write down things like "Reason Missed: Misread/did not understand the stimulus", instead make it more in depth "Reason Missed: Treated the word 'unless' as a sufficient condition instead of a necessary condition." Shoot me an email if you want to talk further: gjoshuanoa@gmail.com