What does it take to quit smoking cigarettes?

I’ve been wanting to quit for a while now. I don’t want to take pills, the patch gives me a rash.
I want to know if any of you jellies that were smokers were able to quit. What encouraged you?
I know this seems like a silly question, but I’m just having the hardest time. I’ve been a pack-a-day smoker now for 11 years.
Everytime I try to quit, I go through wild mood swings. I feel like I’m going insane. If I go more than 2 hours without smoking I get extremely dizzy and I can’t think straight. If I go longer my vision gets intensified. Weird shit, that I can’t handle.
Any unobvious suggestions?