Christine, great question. So short answers is yes, you probably should finish your degree. While the job you have right now may be your dream job, your dream job and interests may change 5 years down the line. If your interests change and you want a new job, that job may require a B.A. which you don't have because you decided not to finish school. While four years of school may seem like a lot, it really is not that much time. If you have a B.A. not only will you be able to get a higher salary, but you will also be able to apply to more jobs that require an undergraduate degree. Having an undergraduate degree confers many benefits and it is incredibly advantageous to have one.
Think about things in the long term, four years of school is by no means fun but it is well worth it. Having a degree opens up doors, allows you to have a higher salary, and offers your job flexibility in the long run. If your interests change and you don't like your job, you don't want to be stuck in it all because you didn't finish your degree.
I hope this helps and I wish you the best of luck!!