To many animals??? Do i have to many?

i have 1 chinchilla, 4 finches, 2 society, and 2 zebra,(differnet types) and recently a parakeet. i am feeding them giving them water every day or every other day. i have the room for them and everything. there happy i guess i mean the birds talk chirp watever and the chinchilla is jumping up and down and running on her wheel so i think shes happy. but everyone is saying i have alot of animals in my room. but i dont think i do. really i only have like 5. i want to get a mouse to and i have space for that lol. do u think i have to many animals?