I'd just go back with a list of things not to do. And a list of people to avoid at all costs. And most importantly, a list of people to be more appreciative of.
Or it would create an alternate universe where I don't make all of those bad decisions so I'll have peace of mind knowing that some form of me lived without the regrets.
What if the people who did get hugs and was told it'll be okay is because somebody goes back in time to where a person needed a hug the most because his/her father never hugged him/her and he/she doesn't want anybody to feel the anguish he/she always felt growing up. But even though he/she tried, he/she couldn't reach everyone. And those people ended up on this website.
*squeezes all funsubers into a massive hug*
(That includes you, guests)