There's a really interesting comic/manga about this; titled "Orange." 16 year girl gets a letter from her 26 year old self, warning her of future events. At first, she writes it off as a joke, but predictions in the letter start coming true. As she starts following the advice of the letter, after a while the letter's predictions start becoming less and less accurate. It kinda falls back on Back to the Future/Dragonball Z theory where the original future continues to exist, and changes made to the past end up skewing into a parallel/alternate universe.
tl;dr there's a cool asf comic that deals with this called "Orange."

These aren't tears...

Smart.

"I lived, bitch."

That damn fiend.

Where is this from?

I'm diggin' these spooky stories.

Fuck yeah! He'd better have some spare AAs, then, cuz it's going to be a long night.

I was waiting for him to slam on his brakes.

In high school, I made a friend's little brother believe "Vagina Dentata" was a real thing.

Omg, this is so wholesome and sweet. :')

"*squish*"

For anyone interested, this was done by Bernini. He did amazing sculptures and often made the marble so thin for cloth that light can even shine through. :D

She looks enthralled.

Winner of "not my fucking job" award goes to...

...I need to show this to my Bio students.

Same, but the last two lines for ours was, "My Momma hit me with a chicken wing, I hit her back with my dingaling."

Feelsubstance is back.