With a large iced coffee in hand, I am going to be very blunt in this post.
What you want to be right now, as a high school senior, will likely change. In fact, 80% of college students change their major.
That being said, there is no reason to be afraid of a major change. Changing a major does not always mean a change in career path. To alleviate some of the stress, here is a personal anecdote:
I came into the University of Illinois majoring in Elementary Education, but have always had a passion for language arts, specifically. At the time I applied, there was no such thing as a Middle Grades Education major. I was enrolled in MATH 1o3, a math class required for Elementary Education majors. The class, to say the least, kicked my butt. I knew I had to drop that class.
So I went to my advisor in a panic, not knowing whether I could pass MATH 103 or even stay in Education. It was then that she introduced me to a new major in the College of Education: Middle Grades Education with … wait for it … a literacy concentration.
I quickly changed my major from Elementary Education to Middle Grades Education with concentrations in both Literacy and Social Sciences.
So there I was, fitting into the 80% statistic. The truth is, though, that I was also in a much more fitting major, too.
All in all, do not come into college stressing about majors, minors, etc. Take each class one step at a time, find what interests you, and do not fear change: 80% of people change.