If you want to make a career in computer science, you need to excel at analytical and logical ability. You also need to be good at math. I don’t think your lack of creativity will be a hindrance as such, but one of the qualities expected of IT professionals is their ability to think out of the box and innovate. I would advise you to check the course content of a degree in computer science before you enroll, so you know what you are signing up for.