It's not good to be addicted to anything, even the necessary cup of coffee, a simple pleasure. And so, I have decided that I'm going to start curing myself of the need for that drink every morning.
Note that me not drinking coffee in the morning = headaches, grouchiness for the rest of the day.
So I'm not going to stop suddenly, I will slowly adapt by taking less and less coffee, until I don't need it at all. Yesterday, I took about half the amount of coffee powder I would usually use to make a cup and had that. And I only had a bit of headache, and I was generally sleepy too (that's my fault because I didn't get enough sleep the night before). Today, I had half the usual again.
I'm gonna keep decreasing the amount of coffee I take as days go by. And soon, I am confident, coffee will not be necessary anymore.