IF (you hate the subject from the bottom of your heart, and you chose IT only because your parents or friends wanted so) THEN (feel free to quit);

IF (you just feel tired and have lost some interest in it) THEN ((take a month off of computers and IT, but don't quit) OR (motivate yourself by doing some practical things in programming. It's amazing how curiosity survives formal education with its predominance of theory. If you don't use your knowledge meaninfully your brain thinks that you don't need that knowlegde and tries to change the wave))

IF (you're concerned by the grade only) THEN (don't be concerned by grades. Grades are grades, not skills or knowledge. We study at unis not to get grades I hope)

//Best wishes.

don't worry, do what you love / love whta you do :)

If you are not intersted in programming and you are far frustrated in this field no matter who you work, the best polcy is to consider what way is better for your future. do not pay much attention to what you are really not concerned about.

English language is not my native language. Do Career and course have the same meaning? Programming is only a subject. Are you interested in IIT Management or programing only? If you love programming I think you could focus in programming instead a IT career.
I recommend you to study and practice programming a little more get a best score

Don't give up, seek help!  Programming is one of the most researchable fields in all of education, you can find any information or help you need online.  Programming requires a bit of unconventional thinking, but the Business IT and Software Development market have incredible amounts of opportunities, as Gboyah said.