https://youtu.be/32Zfz7C5hyU

That's definitely a good idea, it seems like you don't really know why it's happening. A good psychologist should be able to get to the bottom of it. I hope it's free where you live as there are many bad psychologists that have no idea what they're talking about. I hope you don't have to deal with one. But, you could maybe check to see if they're any good by googling their names and reading the reviews, if there are any.

I used to have a problem with my emotions controlling me, but now I mostly always in control of them. I think it's when I started to become more cognizant of them that I was able to control them. That's not to say that I can instantly make myself happy or joyful, but when I notice that I'm feeling a negative emotion I can tone it down quite a bit and sometimes make it disappear completely.

Well, it's a good thing that you've stopped. Besides, 40 cigarettes was too much! 😮 
But you're right. It's much better to quit progressively until you don't need it anymore. If you go cold turkey, that'll cause more harm than good.

I did the same with FB. It creates a lot of stress and anxiety. Moreover, if you're not a social person, what's the point of it???

[quote='Emotion' pid='486' dateline='1409557495']
I'm not sure where else to post this, but my appetite is definitely lacking. I can feel hungry, but I can't feel the urge to eat or anticipation of eating. My body is fine, it can tell my brain I'm hungry, but my brain doesn't care and doesn't give me the feeling or desire to eat. Eating becomes a chore and depresses me. The only thing that seems to help is intense exercise, but its effect is temporary, less than an hour, it just seems to make me want to eat food rather than desire it if that makes sense.
[/quote]

The lack of appetite definitely comes from the fact that you're depressed, emotion. If you're not hungry, you shouldn't eat or, insted of that, try to eat something like a fruit, a smoothie or something healthy.
Intense exercise makes you feel better because it releases a lot of chemicals in your brain.

Neverthless, if you become underweight, you should see a doctor.