When we talk about tightening up your writing, what we simply mean is to get rid of a lot of unnecessary workds and phrases. It also means to get rid of scenes and dialogue that really does nothing much to contribute to the scene.
Too often we feel like we need to add that extra stuff to make the story sound "more real." In other words, we do know that in the morning when we wake up, we probably all have a morning ritual, therefore, why not have the characters do the same thing. So, we spend paragraphs describing the brushing of the teeth, the washing of the face and so forth.
Have you ever watched a television show or a movie though? I don't remember when I first noticed it, but isn't it interesting that those charcters in that show never have to go to the bathroom? It is because that information is not essential for the storyline. We have to go back to the basics on this and think about what the goal of your story truly is and stick to it.