I had a colostomy after surgery for bowel cancer. I had it for six months, but after some research, I learned a reversal was possible.
I spoke to my consultant about this and he said it was possible but a large number failed and had to return to the colostomy.
I found the whole thing upsetting and difficult, I tried many types and adaptations with the colostomy set up but I had several mishaps with it.
I decided to push ahead with the reversal. I was home within a week, and while it took some time to get near a normal toileting, I was happy to persevere and am still very happy ten years later and pretty much back to normal.
I hope this is helpful or at least another option for you.
Also, I have to say my treatment after the cancer diagnosis, I had the very best treatment from nurses several times a week to check on me, cat scan and MRI within two weeks and surgery within the month.