Are you insane? You're already above the 90th percentile. Why would you want to give up? Make sure you're working untimded at this point. I'm sure you'll improve significantly after a course, and with more practice. 170 isn't unattainable if you've already hit 165, but you can also get into T14 schools with below a 170.
Lzero, what did you get on your first practice test?