It is very bad practice to house species from different areas of the world in the same habitat. It is likely that doing this can pass diseases. Snakes should be housed singly. Snakes may consume each other if housed together. Many tadpoles and frogs cannibalize each other.
Reptiles can make fascinating pets for the right kind of owner.
Herps are not fuzzy, cuddly creatures, but some are able to provide more than minimal interaction with their owner. It is important that you learn to accept your herp for what it is and to not try to force it to be what you expect it to be. Each unique herp can and should be appreciated for the wonderful creation that it is.