Total pelvic exenteration for rectal/anal cancer

So two days ago i finally got the news. Till this time i was preparing mentally for APR surgery with colostomy, but now my surgeon says that it would be better to do total pelvic exenteration with two bags. So i was wondering that would anyone with experience in this help me? Like what are complications of surgery, how is life with two bags, how much recovery time after surgery, how frequently is urostomy bag changed and life in general. I am just 24 years old and it really feels like a Armageddon here. Any help would be much appreciated. Thank you.