I would reccomend that you see your doctor for a mild tranquiliser maybe to take for a maximum of a month until you can get a roiutine of eating and sleeping without feeling on edge all the time. Changing your daily routine from when you smoked weed to something different and then you wont miss it or think about it as much. I also find having a good drink helps but replacing a drug with alchol is not the answer. Also perhaps try soem detox remedy / patches to help flush the ganga out of your system a bit quicker as its in the bloodstream about 28days, cranberry juice is meant to be good for detoxing

I do wish you all the best with being weed free, ive been a smoker for over 10 years and have only ever managed to quit for no more than 3 months once, willpower is the main thing and im afraid i am a bit weak where that is concerned. be strong and hopefully you will be weed free in no time