Hey can i ask you?is this true?

we need to pray so that we donts follow whats the world?but then sometimes when we dont pray for long it seem we follow the world style?so which is which?why do we need to pary?is it we are easily influenced?also i thought is human nature to follow desire how could we avoid these feelings,example twp couple date,do we also need to deny that feeling?also when we hungry do we need to act we are not hungry when eating?i dont get it as bible said do not follow worldly things when thats how our on condition is?