To get through something means to progress from start to finish, to go all the way through it. I don't know what Daniel Beddingfield was attempting to get through. Let's see if I can find the lyrics and we can very quickly find out what it is that he is trying to getthrough. Probably something to do with a girl. He's probably having a bad experience with a girlfriend and he's thinking, I've got to survive this experience. We're going to get through this.