What do i do about my marrage?

been married 6yrs and have a 14 month old child. my wife and i dont seem to like each other much lately. we always wanted a family and i love my kid to death, but we just are never on the same page. we've lost alot of our friends due to relocating and or the fact that we just dont go out much any more. i try talking things out, but she always seems to want to yell. i hate yelling!! i really wnat our marrage to work. i love my wife, however cant stand her insecurity. help!!!