The only thing I would add is that a lot of folks do score at least a few points lower on the actual LSAT vs. practice scores. So if you want that upper 160s, you'll want to aim for PTing in the lower to mid 170s.
To reasonably assume you can get 165, you should be consistently PTing in the 167-169 range. Mid 150s to high 160s is a big PT jump that I think would take 2-3 months if you're lucky/smart. I would say you should reschedule for June.
... that 175. The jump from 160s to 170s is by far ... can make especially if the 160s score isn't close to ... average at least in the mid to high 170s.