Hello,
My advice to you would be to do what you are passionate about. If you are doing B.Arch due to the compulsion from your parents and still do not like it I don not think there is any point in continuing with it, because even if you pass the course you may not be able to do well in your career if you have no passion for it.
But do not be hasty and make a decision. As you said you have no idea about the career scope after BSc Psychology, I suggest you research more and see if you actually would be interested in doing it and if it would be worth it.
Please refer to following link for more details about Psychology course:
https://www.careers360.com/courses/psychology-course
Good luck
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile