When quitting a habit, everyone has their strategy but the most important factor is willingness to do so. I quit smoking 16 years ago when I was 40 and have not had a cigarette since then, but I smoke a pipe every once in a while, especially in the summertime at night when I relax after dinner.
It's been many years now and I could probably smoke a cigarette today and keep away from the habit, but back then I was sure if I tried one I would start smoking again so I drastically stopped and introduced the pipe, which is more of a pleasure than a habit, you cannot lid up the pipe right away and start smoking, it is a ritual and takes longer time which makes staying away from it easier.
I would have acted as you did in the same situation, refusing that coffee would have been bad, you still have your four days strike win no matter what, try to introduce a substitute that you can end up liking, of course, it will not be the same at all at the beginning but through the years I've learned our body (and stomach) gets used to anything we challenge it with.
Also, the Tiny Habits book from B.J. Fogg may help, I took his program when he was offering it for free while writing his book, and was quite helpful for any habit you want to introduce in your life, be it new or to substitute another one.
I've never smoked but have heard it's not the easiest thing to quit.
I'm not too concerned about the quitting process, I'm very disciplined so if I decided I would never have coffee again I'd not have coffee, plain and simple. I'm really just trying to cut back and wanted to go a couple weeks without it as a kick-start. But refusing that coffee today wouldn't have gone well and I'd never do such a thing, it's disrespectful.
So, I've hit zero and let's see how the rest of the week goes. I might manage to string a couple days in a row again! Lol
Me in Istanbul trying some local smoke three weeks ago :)
I'd not be looking so cool, I'd be coughing my lungs up! 😂