I also studied with Dr. Collins for about 8 weeks. I pretty much ignored the reading and writing sections because I don't feel that these are something this packet (or anything) can teach you. I reviewed the study material for about a week and then just started hammering through as many practice tests as I could every day. It is absolutely fine that you repeat the same practice tests over and over again. I can't stress enough that you should time every practice test that you take according to the instructions provided. This is meant to help build your time management skills which are 75% of the battle on the real PCAT, after all, you probably already know most of the material. I also bought all 3 of the Pearson online practice tests and took one TIMED full practice test every 2 weeks. These will also help build your time management skills for the real PCAT. Quite a few of my study partners for the test never focused on time management and they definitely regretted it afterwards. I ended up scoring in the 93 %ile and was subsequently accepted. Good luck!