The tips begin at a different place in each module. The advice moves along with the stages of the course.
Try not to let 3rd party MCATs damage your confidence. The writers can be very good, but they don't seem to understand the easy half of the MCAT very well. NextStep and Altius are especially good, but no 3rd party developer has AAMC's resources for statistical validation. It's better to err on the difficult side, and that's what they do. All 3rd party exams are a little too difficult. We do not want to be too critical because these developers are very good! It's best to think of those exams as training for a track meet with weights on your ankles.