The proverb warns that 'You should not bite the hand that feeds you.' But maybe you should, if it prevents you from feeding yourself.
Doubt is to certainty as neurosis is to psychosis. The neurotic is in doubt and has fears about persons and things; the psychotic has convictions and makes claims about them. In short, the neurotic has problems, the psychotic has solutions.
Individual psychotherapy - that is, engaging a distressed fellow human in a disciplined conversation and human relationship - requires that the therapist have the proper temperament and philosophy of life for such work. By that I mean that the therapist must be patient, modest, and a perceptive listener, rather than a talker and advice-giver.
Clear thinking requires courage rather than intelligence.