What factors should I consider before declaring a major in undergrad?

[Respect and Compassion]

Hi there,

I am a 20 year old college sophomore who is taking it easy. I haven't declared a major yet and the past two semesters have been pretty light.

I've done fairly well in every subject in high school, 780 Math & 790 Verbal on the SAT. Still have a 4.0 GPA from gen eds. Attending the local college nearby to save money. I'm very unsure of what I should pick though...everything seems like a decent choice.

If you could go back in time to undergrad, would you change anything? If you're in undergrad right now, what's your current course of action? If you're still pre-college what are your thoughts?

I know career opportunities are an obvious factor but I honestly don't mind going into a field without many opportunities. I also don't care about making 'a lot' of money, whatever that means.