I'm finally going to Seoul next month! What K-beauty experiences do you recommend?

Hello everyone, I'm Mio. I'm going to Seoul next month and wanted to post to ask for advice on K-beauty treatments and skincare, which I've been curious about for a while. I already use and like K-beauty cosmetics in Japan, but I'm wondering what the experience is like in Korea itself...

If possible, I'd love to hear from people who have actually tried things like recommended areas for beauty clinics, treatments you can only try in Korea, and skincare routines. My skin concerns are acne scars and pores, so opinions from those interested in those issues would be especially helpful.

I also have budget and time constraints, so I'd be grateful if you could share anything you think is "definitely worth trying." Since it's my first time, I have a lot of concerns about choosing a clinic and language barriers, but how do you all make your decisions? I'd appreciate it if you could share any experiences, no matter how small.