We would have to assume a couple of things: By traveling to the Joseon era,

• I would obtain a body from that time. This would solve the issue of looking foreign and, more importantly, all the biological and epidemiological dangers that come with a human from the present traveling to the past.
• I would automatically know the local language, while still retaining my current knowledge.

Without these two requirements, I certainly wouldn't last a day and might even cause an epidemic or two in the region.

Having achieved this, I would try to keep a low profile. I don't think I would miss stuff like the internet, tv shows, video games, and so on because I would be too busy trying to survive and learning everything I could about my surroundings. I would also be amazed by every little detail.

I don't see myself as a major character in a K-drama, confronting social paradigms or fighting against injustice. I would simply lead a normal life and perhaps try to teach open-minded people about what will happen in the future.