Heavy smoker pre pregnancy

hello mummies >< just found out im 7 weeks preg and its my first pregnancy. i have been a heavy smoker for the past 12 years. i have been reducing my cigarette intake but it has been really really hard. any mummies who were heavy smokers? please share your experiences, are there any alternatives like nicotine gum/patches that is safer for the baby? i am trying my best for the baby! please dont fire shots at me...#advicepls #pleasehelp #firstbaby