I am a member of any fandoms that destroyed my life. I will list all of them, for there is not much.
Percy Jackson and The Olympians/Heroes of Olympus - I have gotten so attached to Greek, Roman, Norse, and Egyptain Gods/Goddesses that I have literally lost all my friends except for my one friend who has all the same interest as me. Except one.

WARRIORS - This amazing book series lead me to creating so many of my own clans, I don't join anybody's clan (except my friend's. <3)

Wolves of the Beyond - This one series. I fell in love with wolves at the time, I saw book one just lying around so I decided to read it. Then I got into it a started to get the next book, and the next, and the next until I finished the series. Sad, there was only 6 books in this series. .-. My friend never read this series.

The Hunger Games - THE HUNGER GAMES, CATCHING FIRE, AND MOCKINGJAY HAVE GIVEN ME NEVER ENDING THOUGHTS, ALL DAY AND ALL NIGHT! She just started, and already is into it.

Creepypasta - Yes, this internet thing. Creepypasta's are scary stories to scare their readers and will sometimes make them believe it's real. My favorite character out of all: Eyeless Jack. <3

Last: CATS - Oh my gods, cats are so adorable and amazing. I have a pet cat who is so hyper and active! He even runs facefirst into walls, what's not to love!?

If you mean "What are some of the things that you became a fan of that caused you to not do the things that you used to do" then:

-Creepypasta caused me to disconnect myself from my family and become dark and quiet.

-I know that drawing isn't a name of a certain series/internet kind of thing but drawing caused me to day-dream about cool things in class and block out my teacher's directions.

MLP kept me on the internet and i usually refused to go off the tablet (what i use, it's half laptop) UNLESS MY DADDY GROUNDS ME OR THRETENDS TO GROUND MEH :I

hartbig caused me to make a tumblr

divergent made me enjoy reading

Kpop , now i remember lyrices in a second

um...

Hmmmm

OH YES

Minecraft and Transformice!

That's it

haha

Chuichikaru a dit :

Kpop , now i remember lyrices in a second

^ Yes.. Kpop , but I don't regret any of it

ylvis fandom briefly destroyed me before they got too creepy for my own good

Chuichikaru a dit :

Kpop , now i remember lyrices in a second

kpop doesnt ruin my life but i regret to find out what the lyrics are

MY LITTLE PONY.

(i still like the fandom thou)

im so in to the Owls Of Ga'hoole book series and Erangon, Eldest, Brisingr and Inherritance [that is Christpher Paolini's books that have changed the world]

I pretty much sold my soul to Hussie through Homestuck, but I got half of it back. c: I used to constantly talk about it with my friends, and though I wasn't as crazy as some fans, I did read a lot of fanfiction and my feels were always torn apart slightly or a lot.
You could say vocaloid has, most of the 93 songs on my phone are in Japanese/vocaloid songs.
Anime in general. It's like all I like watching these days. cx

Since I started actively joining fandoms, I spend most of my time in my bedroom away from society cx