I am addicted to going to the pet store and buying animals?

Don't get anymore animals for a while. Like someone else said, it can turn into animal hoarding. They will be unhappy and could die and your home will smell very bad. if you still want a bunch of animals, get an aquarium. you can have a VERY large amount of fish depending on the size you get. You can even get little foot-long sharks if that's what interests you.