Again, Church doctrine, not harvested unattributed quotes.
Warnings against interpreting dreams can be found in this document from the Church:
Depth Psychology: the school of psychology founded by C.G. Jung, a former disciple of Freud. Jung recognised that religion and spiritual matters were important for wholeness and health. The interpretation of dreams and the analysis of archetypes were key elements in his method. Archetypes are forms which belong to the inherited structure of the human psyche; they appear in the recurrent motifs or images in dreams, fantasies, myths and fairy tales.
If think you will find that your idea of dream interpretation is coming dangerously close to divination reference CCC:
2116 All forms of divination are to be rejected: recourse to Satan or demons, conjuring up the dead or other practices falsely supposed to “unveil” the future. Consulting horoscopes, astrology, palm reading, interpretation of omens and lots, the phenomena of clairvoyance, and recourse to mediums all conceal a desire for power over time, history, and, in the last analysis, other human beings, as well as a wish to conciliate hidden powers. They contradict the honor, respect, and loving fear that we owe to God alone.