Getting a degree in a *marketable field* is well worth it. Getting a degree in jazz dance or some other fantasy field is an idiotic investment that shouldn't qualify as higher education.
I'm going to assume that you're dropping out because you don't like school, you're uncertain about your degree choice, you're unable to afford college (and don't want to get loans), you're impatient about the time and effort invested to get a career that isn't guaranteed, and that you're uncertain about what path to take after school is done. I think some, if not all of those, apply to you.
Unfortunately, not knowing what direction you should be headed in is not made better by dropping out and going nowhere. Dropping out may well be a sensible part of your plan, but to know that, you first need to make a plan.
MAKE A PLAN! As a kid, adults probably asked you "what do you want to be when you grow up?" You probably got about as far as professional athlete or movie star as career choices, and then people stopped asking. Maybe, your guidance counselor sat you down once, and you had a 10 minute talk about career options. You probably took a multiple-choice test, and then got those answers regurgitated to you in the form of one or two job titles.
That's not how careers in the real world work, really. Stupid bumper sticker slogans like, "Find a job you love, and you'll never work a day in your life," and, "you can do anything you want to do," are everywhere, and real world advice is nowhere. It is not reasonable to expect to "love" a job. You CAN do whatever you want to do, but you usually can't expect somebody to pay you to do it.
You need to find a job you can *tolerate.* You probably didn't jump for joy at any of the job titles the counselor gave you, and all the bad advice you'd received made you feel like that meant they were bad careers. Don't try to find a job you'll love, find a job you can tolerate, and possibly enjoy. Take the paycheck from that job, and use that to do that magical "whatever you want to do" that your parents prophesized about.
Be an accountant. Be a cop. Write computer programs. Build cabinetry. Sell insurance. Work at a plumbing supply company. Become a paramedic.
There are a lot of decent jobs out there that you won't love, but will pay the bills and let you do all that stuff that you do love. Choose one. Here's how:
Give yourself an honest assessment. How patient are you? Can you work with people you don't like? Can you handle repetition? Can you sit in a cubicle all day? When it comes to jobs, skills aren't so often about the ability to find a cure for cancer or engineer a new rocket; they're mostly about the ability to put up with things that some people don't want to do. Again, it's not about loving those things, it's about not losing your mind while doing them. Think of all those little details about all the jobs you can imagine, and put them in a yes or no column.
Next, find some jobs that fit those skills, even just a few of them. These do not have to be jobs you actually would take. But, you'll start seeing patterns emerge, and this will help you think of jobs in a field that you like that you WOULD take.
Get on a hiring website and do a search for those jobs. Skim the results, and total up how many open positions there are for each job you'd be willing to work. Choose a job with at least a few open positions; the more, the better.
Look at the qualifications for the jobs. Keep in mind these are an employer's wish list; actual applicants will usually have half as many qualifications for entry level jobs, if they have any at all.
Do the jobs want college degrees? Most probably do, but some won't. Honestly evaluate whether or not you're willing to put in the effort to get the degree required. This could be a "yes" or a "no." Be honest with yourself. You will probably have seen by now, though, that the jobs requiring degrees are usually quite a bit better than the ones that don't.
If you need to go to school, start small. I'm not sure what your major is, or how far along you are. I would HIGHLY recommend you go to an inexpensive community college, and get a two year degree FIRST. Often, that will be enough to land a job, even if they really want a four year degree. Also, if you discover you really can't handle school, you're out WAY less money at a community college. Lastly, do well at the CC, get your degree, and you can go to any four year school you want--but I'd recommend you keep it cheap. Very few employers care about the brand name on your degree; it's a check-the-box situation.
You don't have to finish college now. You have paid for the classes you're taking, and you should absolutely pass those if you can. Hopefully, a good plan will give you the drive you need to reach your goals--a step at a time. If not, working a crap retail job for a few years will probably put things in better perspective.