If you're anxious about anesthesia, there are a few things you can do to prepare for surgery. First, talk to your doctor or surgeon about your anxiety. They can help you understand what will happen during surgery and how anesthesia works. It's important to have realistic expectations about what will happen during and after surgery.
Next, ask someone who has had similar surgery how they felt afterward. This can help ease some of your fears by hearing first-hand that people generally don't have any problems with anesthesia. Finally, make sure to get plenty of rest before surgery so your body is in its best shape possible going into the procedure.