Is Molly senile?

Poor Molly is on medication for incontenence. She will just be lying there and a puddle forms underneath her. The medicine has worked well for the last 2 years. She is a 14 year old Queensland Sheltie mix. She is blind and appears to be nearly deaf as well. She has trouble standing up and lying down, but once she’s up she will chase her brother (a 2 year old Weineriemer) all over the yard.
Today she squatted and peed right in front of me on the carpet. This is different than her normal problem because she squatted.
Sometimes she goes outside and seems confused about how to get back.
I can’t handle her peeing all over the house.
I’m trying to decide if its time to put her down. I know her hips hurt and its hard to watch her seem so confused. Then I think maybe its just that I can’t handle pee all over my house and I’m being selfish.
Can you offer advice or clarity here?