Unfortunately the only thing you can do is come to terms that growing up in inevitable. I grew up to fast and there are things that I miss about childhool, but I have responsibility, and a job. I have to do what I need to do to support myself and my wife. But that doesnt mean you can't still have fun. I still go out and play sports, and do thinks that I did as a child, but in somewhat moderation. Being an adult doesnt mean the fun is over.