Any suggestions for easing constipation? (Please, no jokes)

I never had this problem for my first 73 years.

But now I'm old and it's become a real problem.

Anyone here figure out how to change this condition of bowels that feel like I'm packed with cement?

The last time I posted a question about this was when I had to give up keto dieting because the keto diet causes constipation for me. I got a series of jokes and smart remarks. Please don't treat this as a joke. It is a very painful condition for me. Really, it's not a joke for those who suffer from it.

Here is what won't work for me, so don't bother to suggest these ideas:

I hesitate to take a laxative. I live in a rented room in a roominghouse with several people sharing the bathroom with me. If I have to use the toilet suddenly, I may not be able to get into the bathroom in time. So taking a laxative could be a mistake.

Legally, in my town, social workers inspect roominghouses and if they find a portable toilet, or any kind of potty, they can close down the entire house and I'd be out on the street looking for a new home. You can only have a portable toilet in a specially licensed señior care facility here. So putting a portable toilet in my room isn't the answer.

I eat a lot of veggies in my diet, and I love salads which I eat every day. I also drink a lot of water.