Planning a cosmetic treatment trip.. How do you handle the budget and details?

Hello, I'm Amira from the UAE and I'm seriously considering going to Korea for some cosmetic treatments, but I'm a bit stressed about the budget and planning. I don't know exactly how much I need to spend on flights, hotel, and the entire treatment combined, and how many days I need to stay there to be able to rest after the procedure.

Thank God I have some savings, but I'm afraid I won't budget correctly and run out of money halfway through. Has anyone here planned a trip like this before? Approximately how many days did you need to stay after the treatment? And is it better to book everything from here before I go, or wait until I get there? I don't want to be hasty and then regret it, but at the same time, I'm eager to take this step. Any advice from those who have gone through this experience?