If you can talk to the right person, then sure, it's going to help more than talking to yourself. The right people are few and far between even among paid therapists, some of which are paid commissions on how many drug prescriptions they give, and a random person is incredibly unlikely to be the right person. Where smartness comes in handy is that a smart person can do the relevant research for their particular case.
My own opinion is that a lot of the "best practices" and so on are aimed mainly at extroverts, and similarly educational practices are aimed at whatever majority group of student-types you can describe there. (Techniques hackers would love in school don't seem to work well on the general population.)
Also, therapists cannot prescribe drugs. No one with the ability to write a prescription calls themselves a therapist. And I seriously doubt that anyone who can prescribe drugs gets paid a commission for doing so. That would almost certainly be considered a massive ethics violation.
If you don't believe the medical industry suffers from the same problems as the political industry, with "sales reps" taking on the roles of "lobbyists", you should do some googling. Here's a nice database: http://projects.propublica.org/docdollars/
