How can I tell my parents about these without hurting their emotions?

My Parents always expect me for the best, but sometimes I am disobeying with them because I am tired of their wants and I can’t do what I want. They always push for the course that they want for me, so to make them happy I followed their suggestion and enrolled in the Business course, but I don’t really like this course, what I want is to be an architect. There are times that I escape classes from that course. And they don’t know it yet.
How can I tell my parents about these without hurting their emotions?

You probably can’t avoid hurting them in the short run; but it is commendable that you love them and care about their feelings. It’s important that you pray for God’s will for your life and it would be good to bounce your thoughts off other believers. How old are you? There comes a point where it is important to pursue your own dreams rather than try to meet someone else’s expectations.