Indeed, nearly all people miss something about home when they are away, making homesickness a nearly universal experience. However, an intense desire to go "back" to a familiar place and time can be very debilitating. A longing for the "good ol' days" and what "used to be" makes it impossible to look with hope to the future.
According to Hebrews 11:15, you follow the direction of your most dominant thought. You don't go anywhere in the natural that you haven't first gone in your imagination. This can be good or bad, depending on where your mind is taking you. If you spend your time meditating on God's promises in His Word, by faith you'll move forward and fulfill God's plan and purpose for your life. If you follow thoughts that want to take you backwards, you will find "constant opportunity to return to it". You'll be home "sick", instead of enjoying and being content with and trusting in God's goodness and faithfulness in the place He has for you today and every day to come.