Re: if you can go back in time ..
I would change quite a few things, can’t say much about them on here though 
What I can say is, I would love to go back into my childhood and beat the living daylights out of my cousins who would bully me, but I was too scared to do anything back then 
We must have all been around 5-6.. I still hold it against them and always ignore them.. even though they’re like “wth are we supposed to have done”.. seems like they forgot 
.. but I won’t