1) to stop smoking if you are a smoker
2) to lose weight if you are a high-BMI patient
3) if you are a fit and active person, you can go ahead and fix your problem with minor risk of complication.
All the best.
All hospital are graded on that.
Depending on type of surgery you will have also the hospital graded on surgical procedures and complications rate.
Follow your appointment and meet your surgeon before, make a list of questions you will have and discuss it with your surgeon.
Try to eat small amounts at least three time a day if your appetite is gone