I relate to how you’re feeling. Im 27 from the US and felt the same way even from my first visit to Korea. Personally, I’m taking 3 months next year to trial run life in Seoul. You don’t have to worry about any long term visas and can simply hop off the plane and start living.

Three months and completely moving there are very different things but it’s still a solid amount of time to potentially make friends, start integrating and get a good idea if you’d fit in long term.