It's so hard to give up something that has been part of your routine. And something enjoyable, especially. I used to drink loads of coffee when I was younger, and then my body gave me clear signals that it didn't want any more caffeine. Giving it up was hard, but time eases the strain. Like most things.
Be gentle with yourself. And good luck! You've got this.
Breaking habits takes time, patience, diligence and yep, one must be kind on oneself through the process. I seem to be going quite well with it and really have no desire to have coffee. Had that client not ordered it before I got there if not have had it. I am a very busy person so it helps to stay busy, it distracts me from wanting coffee, and then on those occasions I have some it's more of an event. Seems to work.