My advice is going to sound like something that you've heard before probably. Start figuring out what you want to do for a job by taking a look at the kinds of things that you like to do for fun. Honestly - you can actually have a job that you enjoy, but the path there can be kind of weird.
When I was in high school I really enjoyed acting on a stage. My plan (believe it or not) was to be an actor. I joined a theater group, and was usually either in a show, auditioning for a show, or teching a show (working backstage doing the lights and stuff) for my entire time through high school. For one of the plays that I was doing I needed to take a few dance classes. A little later, that dance studio had a performance of Snow White coming up and they needed someone to be the Prince. I agreed for two reasons: it was another chance for me to be on stage, which I loved, and I had a mad crush on the girl who was playing Snow White and I would get to kiss her during the performance. One thing led to another, and three years later I was a professional ballet dancer (things didn't work out with the girl). I got to be on stage for a living, and I loved it.
I've been playing video games and drawing and painting my whole life. Even while I was a professional dancer, I would paint at night after rehearsals, and I would design tabletop games (like Dungeons and Dragons) for my friends and I to play. When it became time for me to stop dancing, I decided to take a chance and go to college to learn how to be a video game artist. I thought (and still think) that video games is one place where you can make a living as an artist, and are still encouraged to be wildly creative. During school, I discovered that I really liked designing the games - more than I liked creating the environments and characters that make up the world of the games. By the time I graduated, I had a Bachelor of Science degree in Game Design, and was working as a Game Designer before I finished college.
I love designing games, and working with teams, and seeing the beautiful art that the people I work with create. Both of these stories have the same theme - I started out thinking that I wanted one thing (acting, or to be an artist); and along the way I found the path that worked for me that was a little different than what I had set out to do. At the end of the day, pursue something that you're passionate about. And as you learn more about it and get in deeper, you will find what it is that you love about your "thing", and you will find a way to make that what you get paid to do.
Have fun out there!