There's not much you can do other than what you've already done. You confessed your love so she's aware of how you feel. Capricorn women are cautious. Unfortunately, their cold exterior gives others the understanding that they're hard to get but that's not true she's guarding her heart. Capricorn women love hard and have been targets for men who love the chase but tire easily once they've caught you. For this reason, Capricorn's grow more cautious and more skeptical with each heartbreak. My advice is this: Your words won't hold as much weight as your actions. Spend your energy showing her you're the man for her and spend less time trying to convince her. When she becomes moody, give her space and remember to not take it personally it has nothing to do with you personally but her way of figuring things out. When she's ready to let you in she will.