Assalam wa alykum
can u pls tell me the seriousness of wrong interpretation of dreams by any unskilled person.

All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad, sallallaahu ‘alayhi wa sallam, is His Slave and Messenger.

Interpretation of dreams is a noble field of knowledge and a valued work that nobody should practice except a person who fully grasps its principles. Imaam Maalik was asked: "Can anybody interpret dreams?" He said: "Is he playing with Prophethood? A dream constitutes one part of Prophethood, which cannot be played with."

Therefore, interpretation of dreams without knowledge is a very serious matter. Another danger explained by Shaykh Ibn ‘Uthaymeen when he was asked about Ibn Seereen's book on interpreting dreams, he said:

We do not recommend reading books on interpreting dreams whether written by Ibn Seereen or anybody else. That is because one does not know the difference between the interpretations of the same dream seen by two different people. Perhaps a man may interpret a dream in a way different from its true interpretation and it comes true as he interpreted, as mentioned in a Hadeeth that if a man interprets a dream, it will come true as he interpreted even if it was harmful. So, we warn people against attachment to the dreams' interpretations because they vary from one person to another. For further information, see Fatwa 89334.

Allaah Knows best.