What period would you travel to if you had a Time Machine and why that period?

Back to my childhood in attempt to fix things before they went wrong. I don't need a specific time, I don't care about material objects or money. And honestly, regardless of the period, theyd all have there ups and downs, nothing is perfect, and nothing ever will be. But instead of trying to make new friendships, There are soem friends i can no longer see because they arent here anymore, and even just a chance to see them again, even if it was one last time, I'd gladly take.