Building a home

Well Chris and I are in the process of building a home! It is very exciting and nerve wrecking at the same time. We have the layout and elevation selected and have put down the down payment. We have also been to the studio to pick out our perfect home, choosing everything from floor to ceiling (literally) and everything in between.
I must say it is not that easy to pick all these things! Even at the studio, where we are sticking to the basics and upgrading a lot ourselves at a later time, there are a lot of choices. Chris and I have been there a couple times to make sure we got everything we wanted and we go back 12/16 to make the final decision. After that there is no going back!
I have had a lot of anxiety about such a major life change. What if we picked the wrong house, what if we don't like the area.....the list goes on and on. Truth of the matter is I am just so nervous and have a tendency to obssess over such decisions! (Chris can vouch for that)