bipolar or depression test

Any good advice on how to study for a test Schzophrenia mental health, bipolar, delusions, for RN Schoo? L
Very difficult to understand, distinguish between the disorders. Book is even more confusing! What are the most important points about mental health disorders? Images delusions, delirium, Alzheimer's disease, Schzophenia, bipolar depression – manic depression compared to hypomania? ….. So boring and confusing! Please help if you can. Training LVN RN program w / no experience Psych.
Read the Diagnostic and Statistical Manual of Mental Disorders (DSM IV) contains Detailed information about mental disorder, particularly.
Re: Update & rambling part 1