You seems to be getting some really good advice and shared experience already and making sense for yourself about what your priorities are for surgery. I was a Nurse Anesthetist (CRNA) for 33 years and agree with Jenna Marie that you may wish to inquire about options and certainly deserve to have a thorough pre op discussion with your anesthesia providers.
The more they know about your previous experience and personal health history, the better. There are numbers of anxiolytics, sedatives and antiemetic medications for tailoring an individual plan for you. There are distinct advantages to having one anesthetic with multiple surgeries. I suggest one is that there is only one induction and emergence with the attendant airway maneuvers such as intubation. The take off and landing concept. And, on the other hand, there is the longer time span during which a person absorbs lipophilic gases, narcotics and more that can take a long time to really eliminate and get back to feeling less cloudy.
While there are reasonable risks your attitude is critical IMO. We can be terrorized and in trauma and anesthesia will still work safely, it has too. We leaned a lot from battlefield and emergency work. Ideally, tho, you will be able to picture yourself calm and surrounded by a caring and experienced team, falling asleep and awakening as tho only minutes have passed. Focus on the post op period when you will likely emerge thirsty, hungry and feeling completely successful. You did it! I imagine you can be an assertive patient and let people know what's working and what help you need along the way. People will say good luck and it is also said that luck favors a prepared mind. Prepare by envisioning yourself safely on the other side, ready to recover and head home.
I look forward to hearing more about your adventures.