Dreaming of hitting flies should be, in the dream, I hope you need to be careful of those villains who gossip behind your back and maliciously slander you, and beware of those villains who indirectly hurt themselves.
Dreaming of wood symbolizes building a new house.
Bad tables and chairs: you are unfamiliar with the people in the group and subconsciously wary of them. You are wary of your girlfriend.