How can I plan my time and budget reasonably when getting beauty treatments in South Korea?

Hi everyone, I'm Rui. I've been considering getting a small procedure done in Korea, but to be honest, I'm a little nervous and unsure how to plan the entire trip and budget. I've heard that cosmetic procedures in Korea are good value for money, but with round-trip airfare, accommodation, and food, the total cost is hard to estimate.

I'm a bit confused right now: for example, how many days of recovery time does a procedure take? How many days of vacation should I take? Some people say I need a full week, others say three to five days is enough, it depends on the type of procedure, right? Also, I'm unsure how to allocate my budget—should I allocate most of the money to the procedure itself, or should I set aside more for unforeseen circumstances?

Additionally, I'd like to ask for your experience: how far in advance should you prepare from booking your flight to actually departing? Will it be too rushed? I've also heard that there's a big price difference between peak and off-peak seasons, but I'm unsure when is the most cost-effective time to go. Could anyone share how you planned your entire cosmetic procedure trip to Korea? Especially the allocation of time and money, I feel a bit lost.