I MISS MY CHILDHOOD TO MUCH!?

It happens to everyone I know exactly how you feel. We all reminisce things and unfortunately that's one of them. Theirs nothing wrong with you, I mean I don't know your situation personally and I hate this saying but, time will heal and you may feel this for a while but it will blow over I truly know what you're going through. I suggest listening to Vienna by Billy Joel I do it every time I think about things like this.