And if you smoke?
Don't keep smoking. Start your quit again as soon as possible.
Don't unfocus yourself by sitting around thinking what a failure you are. it will weaken your resolve. Again, this quitting and then smoking thing is a bad thing to repeat with much time in between.
Once you start and fail you need to get mad at yourself and start again so you don't have to find the quitting mindset again.
Come On! Lets Go!