The 2-hour explanatory appointment would be overwhelming and hard to process for the best of us.
This was the first honest video she has posted in ages and I felt very sorry for her indeed. She needs to focus on the fact it is operable, but also she has to come to terms with incredibly drastic, eviscerating surgery from which she will take a long time to recover. What a worry it must be for her family and Matt. Matt also has to come to terms with her life-changing surgery. If they have a future together, it won't be what most young couples envisage.
I imagine her preparation period will involve support from the hospital on how best to prepare. I hope her 'I need to get fat' comment was glib. She needs to gain weight, yes, but she needs to be healthy.