Majors and minors?

College Majors
1

I have a few questions, so I apologize if this becomes a lot of words.
In college, I either want to double major with one minor, or one major with two minors.
I’m not entirely sure what I want to pursue yet as a future career, so that is why I’m coming here to make some sense of it all.

  1. I might want to be a teacher, of either middle/high school english. If this is the case - I’d major in English and Education, and minor in either Political Science or Psychology, depending on where my interests take me. But my question is - I’d major in English because a lot of employers require a degree in the field you wish to teach, but do I also have to major in Education when I have to complete a program to get a teaching credential after getting my degree? If anybody who is a teacher or knows about this can help me, I’d appreciate it
  2. I’m not completely sure about my career, and I also may be interested in a psychology or political science based career. If this ends up being the case, I’d want to major in one of the two, with two minors (the other of the two as well as English; ie major in psych, minor in English and political science). How do I go about exploring these options in college?
  3. Is it true for most universities (California) that when meeting with my college course advisor during summer orientation to choose my classes, I can choose a different major other than the one I picked on my college apps?
  4. Follow up to 3^ if I am allowed to switch majors once choosing my schedule at college, could I switch from English (what I chose on apps) to undeclared, and how can this path help me explore my interests?
  5. I’m really the first in my family to go to college (only child and neither of my parents went) so I’m unfamiliar with the system, to be honest. Are the first two years general courses that most people take regardless of major,
    or is that not true? If so, does this leave any classes open for exploring what I want my major(s)/minor(s) to be?
  6. Does anybody have any other advice/anything else to say about switching
    majors, exploring my interests of majors/minors and how to do so?