Well, the good news is that since you have UC, a colectomy will be a cure for you. I have Crohns, and since my Proctocolectomy, I am in full remission.
I also waited too long to remove my colon. I'm not sure why I wanted to hang on to that diseased thing that was ruining my life, but I know the feeling.
What finally did it for me was the diag of dysplasia. Got that sucker right out after that.
I also dreaded life with an Ostomy, but now 7 months later I can say life is much better now.
The first 3 months or so is a tough adjustment. But, once it becomes routine, dealing with an ostomy is easy - at least for me. I change the system every 4 days, and it takes maybe 15 min. I empty 6 to 7 times a day, but that is when I want to, not crazy with urgency looking for a bathroom.
I'm back to doing everything i did pre ostomy (except reading on the toilet). I'm training for a half marathon on Dec 5th for CCFA, and ran 12 miles yesterday. So nice to feel great again.