Is 4.5 hours too long for general anesthesia during Liposuction?

I am to have liposuction to my inner/outer thighs, hips, and stomach in 6 weeks. My PS explained to me that I would likely be under for about 4.5 hours. I am 39, 5'1, and 130lbs. I am getting more and more nervous about the reality of the risks of anesthesia and am getting more paranoid. I will also add I am a healthcare provider and have likely seen when bad things happen to normal people. Is 4.5 hours too long? I really don't think I could do 2 surgeries and worry more about that risk.