I'm testing Mid150s, aiming for 160+. Studying is going well, I've been alternating between TestMasters books and 7sage. I was just looking for someone to take PT and review answers with.
To reasonably assume you can get 165, you should be consistently PTing in the 167-169 range. Mid150s 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.