inquery about major/minor as an undergraduate and what i should do if i want to study astronomy or astrophysics

hello. i want to become an astrophysicist or an astronomer. im planning on doing either a double major in physics and math, or a major in physics and a minor in math.

im enrolled in a liberal arts university, and my classes start in a few weeks, but they dont offer any exclusive space-related electives. their physics department is pretty good though. will not taking any of those electives result in some sort of error or something in the futurr? and is taking the double major route okay?

i am planning on partaking in different online internships related to astronomy, so i can build my CV. i just want some advice if im on the "correct" path or whatever and is there something more i should/can do? i would appreciate the help! :)