22 y/o and making a career change

At 22 y/o and a crappy $15/HR job I've decided to find a career path i can (hopefully) stay in for the remainder of my working life, I think I've landed on IT as i have a interest in computers (built my first PC about this time last year), and i have light experience with networking IP controlled PTZ cameras via the aforementioned job. My problem is I am having a hard time deciding which specific aspect of IT i would like to pursue. If anybody can give me a run down of your day to day processes and/or what led you on your career path I genuinely am lost on which field to turn and what prequalification's i need to get into the field.