STOP BUYING/GETTING IT
If you have committed yourself to living weed-free than this should be your first step. Unlike tobacco or alcohol, stopping buying weed should be the easiest part of quitting, since it is not so readily available – unless you live in a state when recreational marijuana is legal. You can’t smoke it if you don’t got it. This steps involves nothing more than sheer willpower.

You might feel strong urges, once your stash is gone, to pick up the phone or go over to a friend’s house to get some but find a way to distract yourself – spend some time with a loved one, go out with non-smoking friends, do something fun that does not involve getting high.

GET RID OF PARAPHERNALIA
During your weed-smoking days, you probably surrounded yourself with all kinds of accessories, pipes, bongs, rolling papers, grinders, etc. Once you have entered that new, weed-free phase in your life, it can only makes matters worse to have all those triggers around you. So it only makes sense to get rid of them all. If some of those accessories were expensive or hold some kind of sentimental value, you can give them away just so you don’t have to see them everyday.

CONTROLLING CRAVINGS
Quitting weed smoking cold turkey, just like quitting tobacco cold turkey, comes with its own pitfalls and withdrawal phase. The most serious of these pitfalls is the incessant cravings that come with quitting all of a sudden.

The unique thing about weed is that, unlike nicotine which leaves the body relatively quickly, the active chemical ingredient in weed, THC, is stored in fat cells, so even after you stop smoking small amounts of THC get released into your body, which invariably triggers cravings.

You would think that this would actually help you – kind of like a nicotine replacement therapy but for weed – having small amounts of THC released into your body. Except, since they are only small amounts and since your body is used to receiving more, it actually works against you.

Controlling cravings then becomes your most difficult and most important task. Some of the better ways to control you cravings include:

Doing something else – Seems really simple, doesn’t it? But it is true that distracting yourself from wanting to smoke weed is a very easy way to control your cravings. Take up a hobby, do something you always wanted to do but were too high too start or finish and you will forget all about weed.
Exercise/Physical activity – Why don’t we exercise more? It helps with practically everything, from your overall physical health to alleviating symptoms of depression, exercise is a cure-all. Helping take your mind off of smoking weed is another thing that exercise is excellent at doing.
Having a support system – Having people you can call in times of need is essential in life, but when you are trying to quit weed it is doubly useful so they can give you the support and motivation to stay away from marijuana.
Avoid idleness – This has a lot to do with the first one. Having nothing better to do is one reason people take up smoking weed in the first place. So don’t fall into that trap.
MANAGING WITHDRAWAL SYMPTOMS
Since we already established above that marijuana is an addictive substance, it naturally follows that once you give it up, some withdrawal symptoms are sure to follow. Symptoms like:

Irritability
Depression
Insomnia
Restlessness
Headaches
Again, everything that we mentioned about how to control your cravings can also be applied to controlling your withdrawal symptoms. Exercise, of course, but we can also add to that list:

Eat healthier foods, high fiber foods, green leafy vegetables
Drink plenty of water
Drink coffee (caffeine is a great antidote to the lethargy brought on by weed)
Drink teas with high concentrations of antioxidants