Hi, sorry for the reason you are here.
I am a 16+ year survivor of stage IIIC rectal cancer. I too have a permanent colostomy bag. Yes there is an adjustment period, butt after awhile it is a part of your life. My friends know I have one, very open about it, butt my friends tell me they would not have know without me telling them.
Radiation destroyed my rectal muscles (I had 5-6 weeks of radiation), I had no control. That bag gave me my life back, I have no regrets. As I told my surgeon, I give you carte blanc to take all she wanted, just get all the cancer. She did!! Since it looks like you are dealing with rectal cancer, make sure you have a board certified Colon Rectal Surgeon vs a General Surgeon. They have the experience when dealing with rectal area.
There is a forum you may want to check out UOAA, United Ostomy Association of America. People can get a colostomy bag for many different reasons, cancer is just one example. Really there are a lot of us out there. Here is there web site.ttps://www.uoaa.org/forum/index.php?sid ... c8fe0dc8eb
If you have questions, I will be happy to answer. Know that you are not alone here,