Reasons why I want to stop watching it:

Supernatural - I haven't seen the last season at all, but I kinda got tired of all the pain that's causing me and the characters (especially Dean baby)

White Collar - I started watching this shows because of two reasons; Matt Bomer's gorgeous..well, everything and Hilarie Burton, but Hil is not in the show anymore so.. And the storylines aren't that interesting to me

Suits - This show is amazing, but I still haven't started the new season and I don't know.. I love characters so much, but like in WC, the storylines don't interest me so much. I shall see about this one!

New Girl - I don't really have a reason, haha..It got boring I guess

The Originals - Love the characters, but I think it's boring how all the storylines come down to everyone plotting against everyone and the original family is fighting. And I hate to see Elijah hurting :(

AHS - Loved s1 and s3, not really s2, but I'm not sure what to think about s4 taking place in Circus. I'm not really a fan of clowns and I know it's going to be so damn freaky and scary

Love it <33
But understand 100% why you want to stop it! I mean this season (except 2-3 episodes) was boring as hell! If I wasn't so madly in love with Jess & Nick/Jess I would stop it for sure, I even skip some random Coach scenes :P

The Originals
Supernatural
American Horror Story

I've seen the first season of New Girl but I was bored by it tbh :p even though I adore Jess !!!
I want to start Suits because everyone's saying that the characters are amazing but I don't know I think I will find it boring :( & I also wanna watch TO for Elijah/Hayley & Rebekah :D ,I wasn't that crazy from 1x01 though .
Anyway I used to love White Collar but since I started it because of Hil I stopped after she left ,I think the show is kinda boring without Sara and Neal/Sara even though I adore Peter<33 & the rest characters . If she comes back I will watch it again :D

Not really a fan of any so I'd understand if you'd wanna stop watching them.

I love SPN even though I'm so late it hurts. I know I'll never quit watching because of my Dean baby <33
As for TO, same as Maria. I've seen 1x01 and I didn't really like it, I was bored the whole time but I want to try for Klaus <33

But I understand why you want to stop it. I kinda feel the same<3

New Girl did get boring:/ but same as Nic I can't stop watching mostly because of Jess/Nick<3

AHS, SPN & TO <3