Redtop:
My story is similar in so many ways even though my surgery was due to Crohn's vs cancer. I had a proctocolectomy in 2009 (permanent, complete resection of lower colon and rectum) and I was scared, depressed, had to experiment with various appliances and clothes until I got into a routine. Life since my surgery has been unlike any of my previous adult life. I am now able to be more active, energized, and actually more confident in public etc. I am not saying there aren't rough times and there are frustrations, oops moments and even occasional depression. BUT the difference is learning how to adjust, how to react to situations you're in, an understanding family who don't laugh at an occasional, uncontrollable noise. Celebrate that you are alive!
A lot of my help came from sites such as this and searching, reading and getting samples of things to try.
Specific questions you mentioned:
1. Odor: rarely. Sometimes I can relate to something I eat, sometimes not. If the wafer is securely attached to me and the pouch attached properly to the wafer, I have no problem. Typically the only time there is an odor is I have been outside mowing and body sweat is degrading the adhesive etc. I have to get in the shower, clean up and change and go about my business.
2. What to eat. Slowly experiment. My first "outing" after my surgery (about 3 weeks after) I went to a movie with my son-in-law, ate a bucket of popcorn (bad) stopped and got a chili-dog (bad) and went to eat Mexican food the next day (bad). Had some problems and not related to the ostomy, that would make anybody sick!! Be reasonable. Eat small before traveling.
3. What to wear. Lounging around the house with no company I wear something with elastic in the top. Anytime I am going to be working outside or going anywhere, I wear a product I get from Comfizz. (http://www.comfizz.com/) I slip it on and it keeps the appliance flat to my body and smooth to wear slacks, jeans, shorts, whatever. I had to adjust my waist size and get some new clothes that were a bit larger waist but I wear clothes that everyone else wears! Comfizz has been a lifesaver though! I learned about them on this website and order regularly to keep stocked.....
4. Will it stay attached? Absolutely. Will it stay for a week? NO. You will need to change and you will learn the schedule that is not traumatic for your skin but keeps you comfortable and safe from coming off. I use a 2-part system so most of the time I am at 3-4 days to change the wafer but change the pouch at least 1-2x daily. Usually if I have something detach it is due to either not paying attention to how long I have worn it and how the adhesive has degraded or being in a hurry and not putting something on the right way. Just last week I had company, and we had been outside and got very hot and sweaty and when we came inside, I took a shower and changed everything. In a bit I had to go to the restroom and everything FELL OFF because I had been in a hurry and didn't attach it correctly.
Basically, you have to learn to go with the flow. It is hard at moments and there will be bad days. But I assure you there are many more good days than bad and there are many more good days than there used to be before surgery.