I'm an interior designer in Chicago.
Architects and Interior Designers work along side one another, depending on the firm you get into.
While in school, I picked up a lot of graphic skills which puts me in a great position. The firm I am at I am able to do some graphics for clients to go in the space, pick finishes, and work on floor plans, layouts, elevations. I work with mostly architects so I get to jump into a lot of the drawings that they do. If you're a very technical person, you should def look into architecture, especially if you're good at math and physics. If you're not so good at the math and physics, you should look into Interior Design. Whatever your skills are make sure you are 100% comfortable with technology. Getting to know some photoshop early on will help you. eventually you'll learn autocad, or revit in college either major, you will have to learn it. Architects are leaning more toward BIM technology.
If you haven't looked into some architects, I would do that and see if any of their work calls out to you.
Hernon Alonso Diaz
Frank Lloyd Wright
also look up a couple of firms to see what type of work theyre doing
Adrian Smith & Gordon Gill
there are many more firms but depending on what type of work you want to get into.
Also, research the schools, they have a lot to do with where your career goes. Your portfolio definitely makes an impact on whether you get an interview or not.