My current psychiatrist figured out my main issues after talking to me for 15 minutes. Sent me off to a psychologist back up his assumptions before prescribing anything. Recommended therapists who specialize in the area I needed support in.
The psychologist I went to was great as well (after seeing one that was a terrible). She did a lot of testing (three sittings lasting around two hours) but said the tests were really just to rule out other things. The important part were the conversations.
My life improved tremendously after that.