Okay, that changes things greatly.
You’re not an international for med schools if you’re a US citizen living abroad.
Can you answer questions in #4?
Your success as a premed will depend on the best fit; in addition, the best choice tends to be the college where you’re top 25% that is also the least expensive.
Finally, “premed” is not a major, just an intention; what major are you thinking of/were you admitted to?