I already kinda went through all the possible pet types I could have and they all have drawbacks. The ones I could best live with are ferrets and cats, and I'm not allowed cats in my flat. I've had rats before and they chewed off half a foot of wallpaper and died in what felt like about five minutes. Rabbits are so fragile I'd be terrified of frightening one to death by accident and it's hard to litter-train them, and I used to volunteer at a guinea pig shelter and I loved them but I really couldn't handle living with the noise, and they and chinchillas also have the gnawing problem. I'm not allowed dogs either and they fuck with my sensory processing issues anyway, and reptiles and fish aren't exactly much for emotional support.