I had a similar fear about
waking up to a stoma and bursting into tears, or whatever, but in truth I barely gave it a thought, I was so nauseous and out of it from the anaesthetic. It never really bothered me for the rest of the week I was in hospital either. It all seemed surprisingly simple.
It wasn't of course, and once I left hospital reality caught up with me. It probably will with you too, but you'll either go on to have a j-pouch or adapt to your permanent stoma, so it's a moot point either way.
Dx Crohn's in summer of 2000. (Yay )
Tried and failed: 5-ASAs, azathioprine, 6MP, Remicade, methotrexate, Humira, various diets.
Had surgery Feb '13 - subtotal colectomy with end ileostomy. First thing to put me into remission in 13 years.
Had second surgery 10th July '15 to reverse the stoma and connect the ileum to the rectum. Feeling rough.