No motivation to study Computer Science

What else do you have passion for? Art? History? Math? Study what you love. If there's nothing in college that you have passion for then dropping out makes sense. Don't study stuff for your profession. There's nothing in college that is likely to prepare you for your job better than just getting a book a month before you need to know something.

I would suggest two things: First check out the curricula for the following semesters and see in how far these interest you. And second if you are already quite proficient in programming, there might be some research projects you might can get involved in, therefore making it a more interesting experience.

In my view the challenge of college is to find a few things that interest you and become really good at them, but at the same time "survive" the subjects that are less interesting to you personally.

If it's anything like universities are in the US, you don't get to the exciting CS topics until your second year when it stops being generic programming and specializes in algorithms, computer learning, and other more interesting topics. I'd recommend sticking to it.