Marijuana addiction? ?

Okay I smoke probably to the equivalent of a pack a day smoker, I'm always charged. Well I wanna stop I've tried but I always just go for it. I know it's not physically addicting but habit forming.. How can I kick this? I feel sick to my stomach when I do smoke or right after I do. All I think about is that if I'm gonna spend the day at my house with my family I quicky calculate the smokes of the day. I can't be without it at this point it's good then really bites me in the ***. :-: