Psychiatrists are medical doctors (MD) who have taken additional training or specialization in psychiatry. These days most of them rely on medications as their primary approach to treating "mental illness."

Psychologists come in many varieties, but they are not medical doctors, so if they want you to take medications they have to rely on psychiatrists to prescribe them. Many psychologists have an academic approach. Clinical psychologists are supposed to be trained to treat people with emotional problems; they use what appears to be an unlimited variety of approaches: cognitive-behavioral, aversion therapy, "psychodynamic" and so on.

Psychoanalysts are trained in a particular psychodynamic theory following Freud, although many have developed beyond Freudian theory. Psychoanalysts are supposed to go through analysis themselves. Freud was an MD, but not all psychoanalysts are.

You have to find someone that seems to resonate with you, regardless of their theoretical framework. It is not easy for someone with emotional uncertainties to find someone who is good for him/her.