lol at the comments about math. I hated math in high school. Guess what I study now? Theoretical computer science... and most of it is actually some sort of math in a way. It has more or less nothing to do with high school math though.
There are two kinds of work in IT. You can maintain or fix systems, test stuff, write documentation, code, work in consulting, do audits. Each of it can be done on hardware, software, systems/networking, security level. That's a ton of very different (mostly engineering) jobs. Or you can design systems or do science.
And one of the best things you can do... become proficient in computer stuff *and* some unrelated field, like pharmacy, geology, engineering, anything.