My cat and dog both died and my mom has made the decision that

Move out.

Alternatively, when I was a kid/teenager all we had a dog but I figured out if I 'found' a stray dog, kitten, or suddenly had some animal dumped on me then my parents would feel too bad to make me get rid of it. In my defense, people really did just leave animals in my yard or doorstep sometimes and I did find other homes for plenty of kittens I raised, returned lost dogs, didn't have tons of animals/wasnt a hoarder, I kept shit clean and paid for their stuff, etc.
Alternatively if your mother doesn't go in your room often, you could probably get away with a small animal.

>>2109729
I should also say that if it is your mom who was taking care of the animals and paying for everything, then you're shit out of luck and shouldn't bother getting any.

Also go volunteer at a shelter. You could possibly convince your mother to foster a cat or dog because it's temporary.

>>2109715
Well I'd take on some responsibility. Why can't you help your mother out?

She can deal with the medical things since I'm assuming she has the money/insurance. While you can feed, walk, play with, clean up after, and so on.

I know when I was younger and my parents threatened to get rid of my cat. I decided to step up and take over his feeding and cleaning.

It was only until later that I learned my parents are good pet bros and had no intentions of ever getting rid of an animal they took responsibility over. They just used it as a threat to get me to help out since the cat was for me.

I wasn't even mad when I found out.

volunteer at a shelter

>>2109715
After a protracted illness or death of an older pet, people are sometimes burned out on all the care and heartbreak. Give her some time. Or, have a heart and just wait till you move out, rather than trying to manipulate yer poor Moms.

>>2110018
Sorry, that wasn't fair of me. I skimmed the thread and thought you were asking how to get your Moms to let you get another pet.

Volunteering at a shelter has its drawbacks. Just make sure it's a no-kill shelter or you'll one day come home with some poor critter that was on death row for that day.

Maybe find a shelter or a rescue where you can help socialize animals to make them better candidates for adoption.