Natasha Suri's time machine

I would like a gadget that could take me back in time and enable me to relive my memories whenever I wanted or help me rectify errors made.
I have many memories from my childhood which I will always cherish but the fact is that I would rather relive than just remember them.
I also wants this device so that it’s easier for me to go back in time and know every ill that would befall my friends, family and close ones.
One such incident is that of my mom, my mom suffers from diabetes and I know the pain she goes through and how much one needs to control their diet. It’s not easy seeing your loved one go through so much pain. Imagine how much better the world would be if you could go back in time and know of bad incidents slated to happen and start rectifying them right then, I think people would be so much happier.
As told to Neha Maheshwri