Perhaps (respectfully) this is not good advice? In my experience a “sense of control” over one’s addiction only serves to keep it alive.
I did this because I was getting withdrawal headaches most mornings, which is an unpleasant way to begin the day- I wasn't even drinking that much caffeine!
All these fake coffees (I’m looking at you, chicory root) taste like ash-trays from the grimiest bar in town.
I didn't have a coffee maker at home at that time. So I started getting headaches on Sunday. I made the connection eventually, after my headache completely disappeared 20 minutes after drinking a cup of coffee with a friend.
This appears to be a pretty common scenario.