There seem to be a couple of components to your problem:
1. There’s nothing you like enough to get a degree in.
2. You feel you “should” get a degree.
3. You don’t want to narrow your options.
While you are as undecided as you are, I recommend not pursuing a degree. You’re not exactly wasting your money if you do in your current state, but getting a degree for the sake of having it in the short term is probably not going to benefit you all that much, unless you are particularly good at holding your nose and following a degree and career path. It’s fine if you disagree with this, but think about why you disagree and why getting a degree with no sense of what to do with it is better than waiting until you have a “why” for getting your degree.
I can understand the “there’s nothing I like enough” feeling, because it’s one I’ve frequently had. If that is the case, maybe get broader with your point of view. Are there families of things that you prefer over other families of things? Do you prefer arts and literature over business and accounting? Do you prefer science over music? If that doesn’t work, try figuring out what other broad preferences you have. Your preferences might even be unrelated to families of subjects—maybe you prefer focusing on details over developing broad ideas. Or interacting with strangers instead of people you know. Maybe being in one place is important. Or traveling.
The fear of narrowing your options might be something psychological that requires some kind of counseling. Or it may be that you don’t know yet what you truly dislike. If you don’t know, then do the opposite of limiting yourself. Try 100 things. Resolve to burn through everything you can think of until you hit on something you like or reach the end of your list. Being young (and being eager and earnest), you should have little trouble finding older people who will be willing to entertain your exploration. All you have to do is say, “I want to try this to see if it is something I like” or “Will you tell me what this is like?” There’s also a test called the Strong Interest Inventory that will match your likes and dislikes of many, many tasks with the likes and dislikes of people who are successful in their respective fields. You can find this test online or via the career counseling office at your school.
Something else that might be happening is that you’ve lost some courageousness about yourself exploring options. Maybe you’re depressed, or you’ve gotten messages from others (direct or indirect) that have caused you to doubt yourself or a passion that you had. (Maybe your passion is weird or unconventional, so it requires more chutzpah than you have.) That could be another issue to deal with, but one thing you might try is think about your teenage years or earlier for times when you “knew” what you wanted to do. In my case, it was wanting during high school to be a clinical psychologist. Almost 20 years later, that affinity still rings true, and I’m sometimes bummed now that I didn’t stick with the general goal, because I still very obviously have an affinity for that type of work, but no related degree (since I ended up going with a different major). Even if I didn’t have a career as a typical clinical psychologist, I would probably still be happy working at something similar (e.g. a licensed counselor or whatever)—so I could have jumped around later in life in that family of work and still been happy.
There is a saying (a Spanish one, I believe): “If you don’t get up and walk, life will drag you along.” It’s 100% true.
The main thing is be diligent, but really give yourself room and permission to try and discard many things. Recognize, too, that your “aha” moment might come from the people you meet as a result (e.g. if you are a barista and meet a customer who does something that you discover you want to do).
A couple of books that might be helpful:
Roadtrip Nation (also a Web site)
Simple Truths