Glee Cast - Get It Right

I just really love this song and the lyrics. It is exactly how I am feeling from having to come home from my mission early. I know that I came home for medical reasons, but sometimes I feel like I have made a mistake. I often wonder what would have happened if I had stayed out in New York. I know I can't go back and change what has happened, and the choices that I have made. But I do know that I have learned a lot from the choices I have made, as I always do. I just want to know how I can fix everything that has gone wrong.