Hey.. welcome.
There are more things to life than Christmas Dinner! If you are thinking this, then perhaps surgery isnt for you just yet? Its not easy - and it is a whole life changing thing, not just physically but mentally too. True - sometimes there are complications and yes you could possibly die, there are risks with ALL operations under a general anaesthetic.
I was 34st this time last year, I was 44. I was told I would not see 45 (birthday was in Feb). I had a bypass on 17th Oct 2013, waited 2yrs on NHS... before I was in continual pain, joints, couldnt sleep, depressed, unable to walk far and totally miserable, unhappy, didnt enjoy life wearing 7XL shirts, 62" trousers, embarrassed at my size, had a walking stick... and basically VERY unhappy.
Today - 6mths on... Im happy, confident, virtually pain free, sleep well all through the night (no 3am pee, snoring, dribbling, cat naps), no depression, walk miles, Im now in 40" trousers, shirt I bought last was 17 1/2" neck, Im fitter, healthier, and can do SO much more then ever. I feel like Im 20. Im now... 18.5st... meaning Ive lost 16st. so far!
Surgery is a big thing, I dont have children, so I didnt have the same worries, but the way I looked at it was that if I did die on the table, I wouldnt know about it -and I was in the right place - St Richard's is a pioneering specialist centre for bariatric surgery (Shaw Somers/Chris Pring and Guy Slater are the team and always on TV etc)...
I was scared, nervous and petrified on the day -as always its the fear of the unknown, but the staff looked after me and 6mths later... Im literally half the man I was, but SO happy.
I do understand your concerns (sorry if I sound blunt) but are you really ready for surgery mentally? Life is very different (eating wise) post surgery... Im starting to eat more and more daily (not portion size but in variety). I had my surgery in Oct and 2mths later it was Christmas... I had a tea plate of turkey, 1 small roast pot, lots of veg, cranberry, and 1/2 yorkie pud etc... admittedly it wasnt the portion I used to have and I didnt have lots of "rubbish" (chocs, sweets, drink, cakes, sweets etc)... but I wasnt miserable, I felt full and just had a "taster".
Good luck on whatever you decide. Certainly bariatric surgery is not the easy option... takes a lot of planning and bravery, as well as a lot of mental changes and how you feel about food. Do what you feel is right. x