Dear incounternable,
I approach psychology from two perspectives: 1. being medical student 2. not being a medical student.
I am an Arts student. I I tend not to study topics in psychology that may change it from paper of social science into one of everyday science. For example, topics like brain, CNS and PNS, endocrine system, neuron in part one and physical development, neonatal development, chromosomal abnormalities etc are not my favourites. I study them for mcqs and emergencies only. I prefer topics prone to discussion and analysis like learning, personality, disorders, therapies, crime, maladjustment, clinical diagnosis.
Besides, I believe scores in psychology are not proportional to how much concrete your attempted topics are. Concrete topics belong more to sphere of psychiatry than that of psychology. Scores are matter of trend.
I focus more on understanding the mere basics of topics than cramming further details. So far, these have worked for me.
Fallibility can never be ruled out. These are my ideas for me. Make your strategies for you.