I studied roughly 2 months, 12 hours a day for both times. I didn't really change my schedule.
1) Identify weakness.
Not enough study time?
Was it the performance?
Was the study material/study habits/strategy good enough?
etc
2) Look for ways to improve
For me, I felt my performance was mainly the issue because I thought I did really well. I thought got all my math and general chem right, but I ended up with a 19/17 on them. Probably made a bunch of dumb mistakes due to the lack of sleep/headache I had that day. I tried to fix this by relaxing more by studying less the day before, and do something fun. I also took my given break during the test to try to relax. It was stupid of me the first time to skip it. My mind didn't feel as exhausted when I did take a break, which is probably what led to my improved math score.
I also changed my study material up a bit. I heard about chad's video all the time, so I thought I'd give it a try. I found his efficiency to teach the tested material was amazing.
I was completely loss in the biology section on the test, so I looked for different material to improve on it. I also used the campbell book as reference because I heard that's what they use to make their test.
I also changed my approach to the PAT section. I studied the PAT portion first. I tried to find all the strategies, test them out, see what works. This way, I wouldn't waste time learning how to do them like the first time. I felt I improved a lot in the PAT; however, I felt my second pat test was just insanely hard. Might just be unlucky.
Which portion did you have trouble with?