Psychotherapy is a category, not a specific practice. You are almost certainly talking about 19th century style freudian psychoanalysis, which is not representative of the field today. Modern psychotherapy is largely based around sensible evidence based things like CBT, mentioned many times in this thread. Lots of it is carried out by trained and qualified MD type people. CBT for example is part of the NHS's mental health system. The people who provide it are called psychiatrists.
Obviously there are a lot of quacks out there but I have faith that the OP is not vulnerable enough to be taken in by them.
At least in the NHS, CBT is NOT provided by Psychiatrists, but by Psychologists (or sometimes others).
Psychiatrists deal in Chemical responses to problems, whilst Psychologists deal with Talking treatments, and at least in the NHS there seems to be a definite divide between the two.
Obviously there are a lot of quacks out there but I have faith that the OP is not vulnerable enough to be taken in by them.