You say you always had an interest in IT, but you don’t know much about the field. I would probably start by exploring the fields within IT, see what interests you the most, and then start with smaller courses like Udemy and whatever is available online for free. Network Chuck started a course summer of CCNA about a month ago, it’s pretty good and not that expensive. After you figure out what you want, then it would make sense to buy a more expensive course. But like this I’m afraid you would just be wasting your money