Are you a US citizen or permanent resident? Are you a S. Korean citizen?
I’m assuming that you’re living in the US right now, a US permanent resident or citizen, and that you have dual citizenship in S Korea, through your parents.
I’m under the impression that medical school in S. Korea would not be possible for you. The college admissions process there is hypercompetitive, and if you have not gone through their schooling system, I really doubt that you could get into medical school there, which is a 6 yr program right out of high school.
I don’t know why you chose to homeschool, but if you are feeling socially unsure of yourself, in-person schooling of any sort, including community college, is better than nothing. Best would be for you to attend a good, in-person high school, establish a good high school academic record and have age-appropriate peer friends from school, but if this is not an option, then definitely as many classes at the community college as is possible. Try to also get involved in any youth activities that you can - church youth group, 4H, any sorts of clubs and activities for high school students.
For a home schooler, I kind of like the idea of a nursing path to medical school in the US, eventually, because you could get your RN to BSN very young, then work to gain clinical experience, take the pre-reqs for med school at your local 4 yr public college while doing some nursing shift work, take the MCAT, and apply. You could also easily move to work in nursing in a state with lots of in-state medical schools with cheaper tuition, like Texas, and apply as an in-state resident there. Honestly, you could be starting med school at about the same age as others, but with a big head start on clinical knowledge and experience. And if at any point you find that the med school path is too challenging, you could become a nurse practitioner.
I hope that your community college class is going well. If it does, perhaps you’d like to simply do dual enrollment with full time community college starting in the summer semester, and just work on your “gen eds” to get them out of the way, as dual high school/college credits. You could be starting a nursing program even by age 16, at the community college, and then transfer to a 4 yr college’s BSN after a year or two. If you feel up to it, you can even take med school pre-reqs at the 4 yr college while doing your BSN, if you can fit some of them in.
I wouldn’t recommend this path to students who have the option of an in-school high school experience, because it cuts out crucial social development, but since that is apparently not an option for you, I feel that your best option is to maximize in-person classes at the community college, as soon as possible.