when you are old, will you still think of your childhood?

Small memorabilia will likely to bring back good childhood memories you have. Tales from the oldies (like you parents, grandparents or other relatives) are also reminders of your childhood. Plus try to keep in touch with friends or families back home. Try to befriend people online who happened to grow up in your hometown as well. It reduces homesickness and at the same time, you get to be updated with what's happening to your hometown. In the future, make an effort to visit your town, along with your family.