You CAN do this and as you progress on your smokefree journey, you will learn so many things about yourself. This addiction is powerful and there is no luck involved in quitting. I used the mantra NOPE, Not One Puff Ever when I quit and I said it over and over again. I came to this site every morning and every evening and often in between if I had time. I have COPD too and it is not an easy thing to live with...smoking really does nothing FOR us, only TO us.
Welcome to EX, you are not alone on this journey.
Ellen