Dude don't sweat it. Take it easy. Relax.
Now first, your study material? I would recommend you use TPR for Biology and Physics and TBR for organic chemistry and chemistry. But since you have TPR & EK, I think you should choose TPR over EK. Mainly their hyperlearning science practice book. Verbal use EK101 passages for practice.
Second, one of the most important things I feel most people on this forum do not address is really to know your own weaknesses. What problems are YOU having?
(1) Are you having trouble understanding the contents for the science section?
(2) Are you taking the practice tests under real mcat conditions? (no extended breaks, no cheating, no TV on in the back)
(3) Are you taking at least equal amount of time to review each practice exam, question by question, regardless if you got it right or wrong, and understand their reasoning vs your reasoning?
(4) Are you just using the practice tests to get a score or are you actually using it to keep track of your weaknesses, then going over your weaknesses and get a better understanding on the topic?
Third, TIME MANAGEMENT! I can not stress enough about time management. I personally have taken the real MCAT twice. First time I got a 26 (8/8/10). I was not ready, did not use the right materials, did not use the practice exams correctly, and spent too much time on the difficult questions. On the PS, some questions are just way more difficult (which made me run out of time on my first try), the VR passages are just much longer and more convoluted than any practice test (which also made me run out of time). So I would advise you to also use the AAMC practice tests not just as tests to gauge a score, but review your weaknesses, also learn how to skip questions once you spent more than a minute on them, no matter how difficult. I know its hard to do, it was difficult for me, but you just gotta do it.
Fourth, read some of the forums by some of the popular posters and their advice on specifically verbal strategy. The passages are long, but honestly the questions do not require miniscule details presented at a random place in the passage. Learn how to read the verbal passages and understand the argument the author presents. Don't waste time highlighting details, but instead notice the author's view. Often times you can cross out answers in the questions that conflicts with authors POV. The EK101 passages are definitely much shorter than the real MCAT, but the questions are most similar compared to anything else out there. Use the book to get yourself familiarized with the question types and how to approach them. Find a method you are most comfortable with. Use various different methods: skim questions first then passage, skim passage then skim questions then read passages then back to questions, etc. Remember most information in the passage will not be tested, but you know author's POV will definitely be part of some questions.
Fifth, as a retaker myself, the practice test scores may become less indicative if you took them before. You might very well remember the answers and give yourself a 1-2 point boost and give you a sense of false confidence. I took it two years ago and this year, and I still remember some questions from the AAMC practice tests that probably gave me a 1 point boost on my score.
Sixth, the real MCAT questions have very few simple rote memorization questions. Be unique and try different ways of attacking a PS calculation or a BS question. If your method is better than the explanation (better I mean a faster, more understandable, and reproducible method), then stick with it. That reminds me, use TPR physics, its just so much better than examkracker in my opinion. There is ALOT of reasoning on this test. I think with practice comes understanding the contents, and with practice tests comes the timing, and eventually content, timing and thinking on your feet will come more natural and be the most important skill to have on the MCAT, and in the future to be a doctor.
Seventh, do as many practice exams as you can like I mentioned. Everybody would recommend you do all the AAMC exams. It's worth the money. Other than that, I would personally recommend GS tests, cause they are cheap, in CBT format, and present relatively easy concepts in an interesting way that provokes thinking and might help you with your reasoning on test day. Their PS and BS sections are amazing, VR not so much. Expect your scores for their test to be 1-2 points lower than what you'd really get on the MCAT. I have not personally taken TPR or Kaplan tests, but from what I heard, Kaplan test 1-6 are the better exams. TPR exams have mixed views. TBR practice exams also seem very popular and helpful, but it takes a while to get access to them after you order.
Lastly, learn some of the tricks for the chemistry and physics. I know you are a chem major, but maybe your traditional method of doing things might be taking the longer way (not practice for the MCAT). For example, learn dimensional analysis (check units for the answer choices to see if it matches with what the question is asking), learn to estimate (e.g.
3 x 10 ^ -6 ~ pH of 5.5, then you can use that to estimate and eliminate choices if you had to find the pH).
Links that helped me, maybe it'd help you too. Best of luck.
http://forums.studentdoctor.net/showthread.php?t=733260
http://forums.studentdoctor.net/showpost.php?p=6412828&postcount=3
http://forums.studentdoctor.net/showpost.php?p=6180013&postcount=15
http://forums.studentdoctor.net/showpost.php?p=6695902&postcount=273
http://forums.studentdoctor.net/showpost.php?p=6022602&postcount=96?
http://forums.studentdoctor.net/showthread.php?p=2902530#post2902530
http://forums.studentdoctor.net/showpost.php?p=3346163&postcount=17
