Pregnancy and Smoking?! FML

So I'm currently pregnant with my first baby and we are almost 7 weeks pregnant. My doctor suggested that I start using nicotine patches to wean off smoking and I got all the way down to step one to step three going for 21 mg to 7 mg but I'm still finding it extremely hard to quit I have severe anxiety about everything about my pregnancy and I'm not sure what to do I went from smoking almost an entire pack a day before pregnancy to now three a day. I've seen some posts were people call these women selfish self absorbed or just outright a  bad mom but for those who have never been through addiction they don't know how hard it is that some of us want to quit and want to healthy baby but the addiction to the nicotine overrides that sometimes. Any suggestions or stories and how you survived your pregnancy with a healthy baby?