Some of this depends on your location: the American West has many jobs because there is so much federal land and contract archaeology is a going concern. But then you have to ask yourself what you really think archaeologists do; much of what contract archaeologists do is far from romance and involves a great deal of tedious surveys and the cranking out of reports.

I always tell students to study what they like because they are more likely to do well, and a degree that was earned with joy is never time wasted. Many people work outside their field of study, but simply having a degree can give one an edge (although the world is changing rapidly in that regard). My concern in advising you is that you may have a naïve view of what archaeology is all about and that you will be surprised and disappointed during your studies or when you look for a job. On top of that, a BA in archaeology can get you a job at the lowest of levels with a contract firm, but to get anywhere in the field, at least an MA is needed. You can work on that while doing contract archaeology (most field work is in the summer and lab work allows for flexible schedules).

Is there a museum or university lab where you can volunteer before entering college to see if you really like it? That experience may expand your horizons and give you some of the answers you need. Good luck

If paying for college is an issue, then your first concern should be picking a major that interests you. It's your surest way to get out of school and onto the job market in four years. Don't waste an academic year and thousands of dollars finding out that you hate organic chem, statistics, or materials. Cast your net wide and take classes that interest you. It'll be your best bet for getting a job you enjoy, even if it won't land you a job with a Fortune 500 company.

A bachelor's degree in archaeology will probably land you a job in culture resource management (CRM). It's decent pay but hard work. Lots of time in the field, not always comfortable accommodations. But the people that love it love it. They're great to work with, they enjoy a ton of time outdoors, they'll spend hours meditating on a potsherd because they think it's important to appreciate that a living, breathing human being once used and made that pot, and some of them are even able to make a lifelong career of it.

Alternately, a bachelor's degree could be turned into a PhD, especially after a few years of CRM work paying off school debts. PhD programs are typically funded for 5 years in the US, although the job market for PhDs across the humanities hasn't been terrific in the past few years.

And if you scrap the idea of becoming a professional archaeologist, there's always dig sites looking for volunteers. Historical sites especially on the East Coast generally accept volunteer labor, and some universities will allow volunteers to participate in their field schools. (You'd have to find a university with an anthropology department that runs a field school, then contact the professor teaching the field school directly.) So it can still be a hobby, even if you decide not to make it a career.

You can also ask r/archaeology

The difficulty with the field is that it requires a relatively large amount of starting "capital," be thar time or money. While one can get the full experience chemistry or history research at your university, they can not receive a full education in archaeology on campus. You also can't go to most campus career centers and say "Help me get a job!" They'll be clueless.

You must be prepared to make sacrifices: I spend my summers in the field, so the rest of the year I have to work far too many hours. You will also need to insanely proactive. Apply for everything you can find. Send obnoxious e-mails to museums or anything that might need volunteers. And lastly, don't wait. Some people's first experience out of class is the summer before senior year. This doesn't work well.