Theraphy can work on some limited cases, but it depends a lot on the factors involved. There is A LOT of quackery out there in regards to therapy (psychoanalysis, gestalt therapy, theta healing, scientology, etc...) and it must be avoided at all costs. Only Cognitive-Behavioural Theraphy has show any actual scientific evidence of positive effects, and only for a few limited conditions (depression disorders, anxiety disorders, PTSD, bipolar disorders and borderline personality disorder, if I remember correctly). I remember someone actually sharing a scientific paper around here claiming that in 100% of all cases, men who seek therapy to treat love-shyness do not gain positive results. Research about "Evidence-Based Theraphy" to learn more about the types of therapy that have been proven to work and clarify with the therapist which methodology he or she uses before you agree to a session.