Hi

K the first thing to realize is that canceling is not the end of the world. Plenty of people on here did it for the October test, and are glad they did. Most of those people were in the same situation you are in: i.e., were getting high scores on their own, but nerves held them back on the real test. So just to reiterate: it is ok and not at all rare to cancel.

This is what I would recommend: mark the last date to cancel on your calendar, and make sure that you make your decision two days before that date. In the time you have between now and then, surf around on here and see how other people did. Ask questions about specific LSAT questions you think you got wrong (if you can remember them). You'll get a pretty good idea about how other people answered, and may find out that you did better than you thought. Or, you may have your fears confirmed. Either way, your decision will be better informed.
Keep in mind that you're very lucky to have this option of working for a year instead of going to law school. That's a nice safety net to have. So you know if you do cancel, you have a backup plan.
Lastly, your decision should depend (perhaps first and foremost) on how badly you want to go to a particular school. If you have your heart set on HYS, or any of the top ten, and if you're relatively sure you got a below 160, I say cancel. Your GPA is excellent, but your LSAT would not be indicative of your potential, and might get you dinged. However, if you're considering a good top thirty school, like UC Hastings, you would have a 20% shot with a 155 and a 3.9. With Pepperdine (more of a top 50 or 100 school, but on the upswing), you have a 75% shot. So it really depends on how badly you want to go to a certain school, and whether or not that school is T14.
Personally, and if I were you, I would cancel, study (under simulated test conditions to work on those nerves--get friends to time you and be mean about it) and retake. Not only would you get a better score, but work experience is always a plus on an app. But that's just my opinion! And whatever you do, don't freak out - it'll be ok. Really
