Desi - no matter which surgery a person chooses, it's really important to understand that it STILL comes down to a lifestyle choice. Ask yourself if you can commit to taking your vitamins forever [it's not that bad - if you miss a few days, you'll still be ok, but ya gotta get back on the horse!]. your teeth go bad if you don't do what your doc says: get your protein in, take your vitamins, and don't throw up a lot.
But over and above all this, given the loss of your mother - and I know you're hurting over this - having a chat with the surgeon about your feelings and the grief would be a great idea. there's nothing wrong with postponing the surgery until you're emotionally ready.
