If only time can turn back

I heard something on e radio just now. If only can turn back time, when did u want it to stop?
If there is really such a thing, I would want time to stop when I am still a toddler. Becoming a toddler is nice, with no worries.
When I am still a toddler, I would stay at my nanny's house during weekdays n go hm only at weekends. In my nanny's house, I could play with a few children, especially Jing Hao kor kor. He is like my big brother n he dont mind me demanding him to do things!
When I go hm on weekends, I would go to my cousin's house to play with them, whom are Ivy, Edwin n Joyce. I heard my auntie telling me tat everytime I get into trouble, I would hide behind Edwin's back n he would shield me from all e scoldings! haha
I dont seem to have any memory from my childhood. I heard most of them from my aunties or my jie jie. During my childhood, almost all e scoldings were being protected by e guys n I continue being e demanding gal! haha
I think I enjoy my happiest moment during my childhood with 'them' still around.
I sincerely hope that time can be turned back or I can travel to e 3rd dimension.
Is there such a thing around? I really wonder.