Hi, I am thinking to get a helper. However, I am living in a 3 rooms flat. 1 room for myself, husband and daughter. 1 room for my parents and son who help to take care of my 18 mo son. Any idea how can I squeeze some space for helper?

Sounds like living room is your only option. Potentially helper will need to take mattress out every night and keep in the morning. During interview highlight this arrangement in front of agent and make sure the helper is agreeable to it, else it may come up as an issue when she joins u