I really need some advice. Please help!

So I had a misscarrige in January, and it's been really hard on me ever since. My husband decided to make me to to the doctor today because I've been acting crazy lately. One minute I'm perfectly fine and laughing. But the next I'm crying or yelling. My doctor told me I needed to get a pet. Something small and just mine. Something I can "mother and control" we already have a dog. And since we live in an apartment I really don't want another one just yet. A fish would g work because I can't hold or control or mother a fish. Lol so please give me some ideas!.