Have you been somewhere and thought I would love to live here? Or, read a job description that felt as if it was written for you and thought I could do that job? Or, seen a house or apartment that you adore that's out of your price range, but if you make enough cuts you can afford it?
Before making a decision that will impact your life, seek God's guidance...and follow it. That city or job or house may be exactly what you desire and everything may fall right into place. However, when we move under our own understanding, it may be that the city has an extremely high cost of living; the job could require you to work 100 hours a week; or the utility bill at the house is so high you have to pinch pennies to make ends meet. Hence why we need to seek God before we make a change. There is nothing wrong with looking at your options and knowing that you have them, but we must always count the total costs, i.e., time, peace of mind, money, etc., before we move.
Remember, God knows the future and He only wants the very best for us. If God is in it, He will give you peace about the choice. If there is no peace, take a moment and consider that now may not be the right time or this may not be the right choice.
And be sure not to confuse your fear or lack of faith with God's answer to you. Don't allow your fear to keep you from moving when God tells you to. When He clearly provides a door that you are to walk through, be obedient. We want to live life to its fullest and have all that God has for us. In order to do that, we must seek Him and listen to the answer. Moving without Him can make us miserable and lead us into territories from which we later need His deliverance.
Make sure you seek God first to ensure that the job, or house, or whatever it is, is the one with your name on it... that thing He created just for you.