Thank you all very much, it really means a lot to me.
I just wanted to add something for newbies. From what I've read so far, people do not have second thoughts if they are 1 year into quit. I believe this heavily depends on the reason for your quit and other factors as well.
Most people quit because they are sick of smoking, they want to be FREE of addiction, healthy for their children, because of social stigma etc etc...
I live in a country with most smokers per capita in the world. Not smoking here is kinda weird, socially. Cigarettes are dirty cheap here, I don't plan on having a family (so can't really quit for kids etc), I didn't mind being addicted and smelling bad from time to time. And I wasn't really sick of smoking. What I am trying to say is that I didn't quit for reasons people usually do. I only quit because of possible health implications in 30 or 40 years from now, if I even make it that long. And I believe that's mostly why I am having a hard time from time to time. I sometimes feel like I've lost a lot and gained nothing.
Having said that, I feel much better last 2 days and it seems I need to keep myself physically active EVERY day instead of 4-5x per week to keep my serotonin and dopamine high :)
Thank you all again for being supportive!