You have two choices from here. You will decide that you have quit as of now and will never have another cigarette again, or you will spend your days subconsciously counting down the hours until you actually have one again.

One thing I found that helped was how I dealt with the cravings. When they hit out of nowhere, I saw them as my brain trying to catch me off guard, trying to get me to have a cigarette. Take note of that feeling, knowing that it will pass fairly quickly. Once the craving is gone, chalk it up as a win and know that you can overcome the next one the same way.

Also, recognise your danger times. If you normally have a cigarette after dinner, switch out your routine so you do something different and it may help you to get past that moment. If stress makes you smoke, as you feel the stress mounting, tell yourself that you will NOT have a cigarette just because of that bit of stress because you know that it will pass, as will the craving - and you will be glad afterwards that you didn't.

I'm sorry this is so preachy - but I tried to quit quite a few times using all sorts of tricks that they tell you (patches, cutting back etc). In the end, I just put them down and didn't have another one, finding that far easier than all the quit-smoking aids. Each day gets easier, it just depends on whether you really do want to quit. If you don't, then you will spend your days hanging out until you can have your next cigarette, which only makes it a matter of time until you do.