Starting something new can be overwhelming. So can closing out a chapter in your life. Sadness can overtake us, but happiness can too. Sometimes we need to let go so that we can work on getting a grasp.
God has worked in your past. He wants to be part of your future. Trust him in the present. 
“To every thing there is a season, and a time to every purpose under the heaven:”
Scripture taken from: Ecclesiastes 3:1-8