Hi Norma! Yes, and I can confidently say that pretty much anyone I've ever known has - at some point - felt like they didn't know what to do with their life. Completely normal.
Some people choose careers (doctors, for example) that put you on a pretty straightforward path. But many people have no path before them except what they create (myself included). And that makes it hard.
But there are three things you can do to make it easier:
1) Do something.
It's far better to actually do something than to wonder about many things. What it is almost doesn't matter -- be a clerk at a pharmacy, an low-level employee at a large corporation, or a volunteer at a non-profit.... it really can be anything. What is important is that it gets you experience and gets you outside of your head.
2) Learn. Pay attention to what you like and dislike about what you're doing. It's not all going to be roses. There is going to be hard work with anything. There are going to be ups and downs with anything. But by gaining experience, you really learn what you like and don't like and whether there may be a future in what you're doing.
3) Record and Repeat. When you're young - try many different things. Take advantage of breaks from school as a way to try something new without feeling bad. (You don't have to quit, since there are defined time limits that people respect.) At the end of each experience, take time to record what resonated. You may find that there are common threads.
For me, personally, I had no idea what I wanted to be when I grew up. However, I ran the gamut in terms of jobs I've held (pharmacy clerk, janitor, environmental volunteer, grocery clerk, help desk admin, retail associate, college admissions, retail manager, to name a few.) Throughout my jobs, that I loved technology, interacting with people, and educating people on new things. Working in sales and marketing is a by-product of knowing what I enjoyed and didn't enjoy.
Your dream job is finding the perfect job at the perfect company. Getting a lot of experiences while you're young will get you ahead of the game.
PS - Since having every experience possible isn't realistic, I also recommend getting coffee and lunch with as many folks as you can to understand what they do. I learned, for example, that getting a law degree wasn't what I wanted to pursue. (While I probably would have learned that as a paralegal, a lunch was a lot quicker!)