You won't really know what you want to do until you try it out so its probably a good idea to do some short courses in Web Development, Networking or Basic Programming. The creative types tend to get into Web Design, Networkers tended to be hands on technicians who like connecting and trouble shooting hardware, programmers are the guys who build the programs for business. These are generalizations but these days its handy to know something across all three streams, there is a demand for Networkers who can also program due to the need for more cyber-security.
I was an Electrician before I went back to school (TAFE) at the age of 35 and got into IT. I started with Web Development, got bored with that after 15 years and switched over to the "dark side", and did a Bachelor in Information Technology (Software Development) at 57. The problem with IT is that you never stop learning and its almost impossible to keep up. If you like reading and studying IT is for you, the money is not bad too.