I am a psychiatrist registrar (resident for you americans) and have a significant amount of experience in psych subspecialties (forensic, child and adolescent, general adult - all inpatient and outpatient).
Psychoanalysis is bullshit - as a theory. Still worth reading Jung, Freud et al just for interest. There is a substantive evidence base that demonstrates that any sort of therapy (gestalt, psychodynamic,CBT) produce similar outcomes regardless of the theoretical basis of said therapy. Ultimately, the patient-doctor relationship is most important in 'healing' for psychiatric patients - the therapeutic alliance.
As you are not yet in medical school, for an introduction to psychiatry a good basic general text is:
- Introductory Textbook of Psychiatry - Nancy Andreasen & Donald Black
If you are interested in psychotherapy, I recommend the following books (the latter in particular):
- The Gift of Therapy - Irving Yalom
- Existential Psychotherapy - Irving Yalom
For the art of the psychiatric interview:
- The Psychiatric Interview - Daniel Carlat
To learn more about descriptive psychopathology (best paired with clinical experience - reading about psychosis and observing it in a patient are entirely different things):
- Symptoms in the Mind - Andrew Sims (2nd or 3rd ed is recommended)
- General Psychopathology - Karl Jaspers (Seminal textbook of psychiatry; 103yrs old, but has not been surpassed, particularly in its description of psychotic states. You can get a copy from your uni library, or buy one from Johns Hopkins online. If you're serious about psychiatry, you MUST read this at some point)
More comprehensive textbooks that are quite excellent if excessive at this point in your training:
- Kaplan & Sadock's Comprehensive textbook of psychiatry
- The New Oxford Textbook of Psychiatry
And most importantly - to learn about being human:
- Ulysses - James Joyce
And finally - if you really want a 'cosy life charging 100 quid a session off rich depressives [sic]' then I do not recommend medicine. It is a career that will drain you, dominate you, demanding an enormous amount of time, emotional energy and ethical fortitude.
Medical school alone will expose you to more Type-A high-functioning soulless STEM faggots than you can possibly imagine (to be found amongst peers and supervisors alike - with said supervisors having the power to completely crush your career prospects on a whim).
Psychiatry is without a doubt the most Veeky Forums profession you can possibly have. It is amazing. But it isn't for everyone. The psychiatrist's office is something akin to a secular confessional (with the prescription pad perhaps in place of the Eucharist?) There are moral issues with restraints, treating patients against their will etc. Keep an open mind in regards to other medical specialties, at least until you gain some proper clinical experience. And please - be good, and good luck