I don't smoke that much, 1 1/2 pack a week, and only when im either bored or stressed
Since you smoke when you are bored... try to find things to do to occupy your time so you don't get bored. It doesn't sound like you are too addicted to it since you smoke so little...there are people who smoke a few packs or more a day.
But if you feel you have a hard time quitting there are a few options available like the nicotine patches, inhaler and gum. T
here are also a couple medications available like Zyban and Wellbutrin but you would need to talk to your doctor about taking them to see if that's what is best for you.
Another good way to not smoke is when you feel like you want to have a cigarettes' get a celery stick or carrot to chew on.
Also since you mentioned you also smoke when you are stressed...try doing other things to relax like listening to music, talking to someone, relaxation techniques, etc...
Good luck with quitting!