Scared of Surgery

Hello everyone. 27F, 265 lbs, and I vape (quitting tomorrow). I am currently scheduled to have my gallbladder removed on the 21st from confirmed gallstones. I’m on a low fat liver-shrinking diet where I can only eat small amounts of dairy, fruit, and veg. FWIW, I’m in the UK.

I realise that the probability of mortality from this surgery is <.1%, but I’m still high-key terrified. My main concerns are that my airway will close up (I snore, but don’t seem to stop breathing according to my husband) or that I’ll get a blood clot. I feel like I’d be less worried if I wasn’t obese, but I can’t do anything about that now.

I would appreciate some reassurance or advice.