Court and smoking....

I am having an extremely high kicking cigarettes... I am at a very high stress level point in my life to say the least. Last September when I was working graveyard at a gas station I woke up the next morning when my kids got home from their dads to find out that their half-brother" their dads kid" had been sexually molesting them.. I have two boys 8 + 10 and it happened to my eight year old once and it happened to my ten-year-old for 6 months... I immediately took them to the hospital for a rape kit and pressed charges. It has been a very long process court has been continued out and put on a Stay 7 times. We were waiting for evaluations to come back on the kid psychosexual evaluation and mental capacity evaluation along with a polygraph. I had a phone conference with the prosecutor and the child advocate the other day and found out he passed most of the polygraph because he fully admits to what he did to my kids and he passed that it had never happened to him. Due to his age he was 11 when he did it to my eight-year-old he was found incompetent and all charges are dropped along with the restraining order... He was eleven and twelve when he did it to my ten-year-old so he was found competent and Court will proceed from here. This kid was facing four counts class a felony rape charges and now is only facing 2 which I will probably have to take a plea agreement to keep my son from having to testify in court... I am having the world's worst time taking smoking because of all the stress! I don't know what to do! My heart hurts daily for my little boys most a year later I still cry all the time! Smoking calms me down and helps the stress of it but I know it's not healthy for the baby have extremely bad anxiety and cannot sleep well my OB refuses to prescribe me anything for anxiety even stuff that is safe for the baby and for sleep! No I need to quit smoking but I feel nobody will help me with the underlying issues!