I always feel stupid giving advice since I've been married, what, a year? I can say this: Be in it for the long haul and just know there are going to be rough patches. No two people are the same, there are going to be areas where you just don't click.
Right now I am trying to be in a place of calm, a place where I can chill out and then handle the chaos of life better. You don't just get it overnight; you have to work at it. It's a daily struggle.