Am I Really Want To Be An Engineer?

I'm 20. Now I'm doing foundation in engineering in a college.before this i also had entered a college and taking same course but I'm flunk.my parents give me the second chance to prove it that I'm really interested in engineering.after 2nd semester in foundation I'm think I'm not suitable for engineering courses.this is because i do not like physics at all.i'm interested in doing maths but my results for calculus only C,but i really like calculation.now i very confuse with myself,how come you want to be an engineer but you don't like physics?