I drink 5-8-10 cups of coffee a day prepared on automatic coffee machine.
My problem is that I don't have a stimulating effect from coffee. So I usually feel if I must drink coffee or I feel tired If I don't.
I have tried to get rid of this addiction several times. I can easily stop drinking it for a couple of days (or weeks). First 1-2 days I have a headache and I'm tired; but after that I feel normal. After 2 weeks I tell to myself why not to have 1 coffee, then 2 coffee and very soon I'm again on 5-8 cups a day.
Update: After one year nothing has changed. I'm still on 5-8 cups of strong coffee. I simply like how it smells, I like how it taste.