I wish that I had read this post before I replied to your other one. And I agree with the other posters: the best gift you can give your daughter is to stop and re-evaluate how you are managing this relationship.
You grew up in one culture, your daughter- by your choice! - grew up in a different one. You want her to respect your culture - but that goes two ways. Where is your respect for her and the culture she grew up in?
Because all of the responses have turned this back to being an issue of yours, not your daughter’s, you may decide that it is because many (not all!) of us are American and/or not Korean- so what do we know? What we know is the culture in which you chose to raise your daughter, and she is inevitably part of that culture.
Your daughter is legally adult, but she is still becoming an adult. How you and her father handle the next 2-3 years will shape the relationship you have for the next many decades. It is hard- very hard - to stop and say ‘am I wrong? how could I be wrong when it worked for me and it’s all I know?’ ‘what did I not understand?’ ‘if I don’t parent my daughter this way, how do I?’.
That is why people are suggesting family counseling. If you love your daughter and your goal is to help her grow up into a young woman who can build a happy and successful life, and with whom you will share the joys of family over the decades to come, acknowledge that what you are doing isn’t working, and isn’t going to get you there.
So, tell her that you are realizing that as she gets older how you relate to each other as mother and daughter needs to evolve, and that although it goes against everything you were raised to believe, you value her more, and you are willing to make a serious effort to work with her. Then do it. You might start with the therapist she is talking to at school.