how to get rid of coffee/tea addiction?

First of all why do you want top get rid of the habbit. How many cups do you drink pr day? IF it is too many then you need to think.Otherwise it is just fine to drink tea or coffee. Both are good for something or the other as per the studies.

Different people use different ways of quitting. What works for one person may not work for another. Try these steps in any order to see what works best for you. Kicking it in one clear cut may work well for some, even with the symptoms. Feeling the headache and fatigue can actually demonstrate just what the caffeine is doing to your system. It does also give some an important sense of accomplishment - since some people may not notice the difference when giving it up gradually. Get yourself a replacement drink, it could be water, carbonated water, juice, decaf - just something to get when the urge for a cup sneaks in. "Postum" is very similar to coffee, but without any caffeine. Try it. You might like it. As an alternative to quitting gradually, you could just go cold turkey. This is harder, but often more effective. If doing this, increase your water intake drastically, it will often help reduce the headaches. Another thing to try: The first week, drink your coffee as you normally would. The second week, when you make your coffee, use 3/4 regular and 1/4 decaf. The third week, use 1/2 and 1/2. The forth week, use 1/4 regular and 3/4 decaf. The fifth week, you're drinking decaf! Use your strength to fight your weakness. Ex: If you are competitive, find someone just as competitive with you to compete with to see who can stay off of coffee the longest.

I think you can consult a doctor if you cant control it.The doctor give you treatment and I tink it will be over in two or three days.

start taking water as much as ppossible and have positive attitude

you can't get rid of any addiction overnight. you have to do it little by little, slowly, with full awareness and determination. so, you may start drinking lesser cups of tea/coffee everyday until you get down to the last cup and eventually none of it.

I would start by switching one of your cups of tea or coffee to a decaf cup a day. Do that for a week. Then the next week switch two of your cups to decaf, week three do three decaf cups and so on. It's not something you can do over night.