First, calm the buck fever. That initial rush of adrenalin and excitement about a decision. In this first blush, everything looks better than it is. Either time or logic can help you here, give it a rest or apply some common sense.
Second, list the five things you are loving about it and list the five things you hate about it. It is always easier to overlook that there is always the other side. Nothing is ever all bad or all good. Understand the trade offs.
Balance is the key to sleeping well. if you do not think about all the options while you are awake, you will think about them when you go to sleep. Right, wrong, or indifferent, a decision based on sound though will result in sound sleep.