I'm gettin' married, What should I do to be stressful free?

Hi, miranda. I am not married so I think it would hard for me to imagine the confusions going through your mind. But, I can give you a piece of advice. It is not the worries that solve our problems but it is the effort. So, if you have a genuine problem among those "what ifs" you have been thinking, three months is a good span of time to work on preparing for such situations. But, I guess many of your worries are just because of your fear of adjusting to new conditions or due to your enthusiasm for a new life. This is natural. To get over them, just engage yourself in your favorite activities, or be in company of your acquaintances/family most of the time. And remember, you are not the only one going through this phase. Almost everyone gets over them. If they can, why cann't you?