It is very difficult to quit smoking cigarettes. It took me over 50 years of smoking before I learned how to quit. The first step is to acknowledge, you can not quit. the next step is to ask Allah(swt) to give you a reason to stop. He has given us many reasons why we should not smoke, but we always find a way to say that the reason does not apply to us. We need to actually turn ourselves over to Allah(swt) and admit that He is the only reason we need to quit.
Smoking carries a very heavy price and like all things in life we have to pay the price. I will personally tell you it is a very heavy price and too expensive for the pleasure smoking gives in return. You do not want to pay the full price, it is not worth it. I know you can not quit for your self. But, do your best to quit because you love Allah(swt)