My current strategy is to replace coffee with caffeine pills so I can control the amount exactly and reduce it slowly until it reaches zero.
Also, having to take pills when I feel bad feels rather ridiculous and makes it obvious that I am addicted.
Is there a specific brand / type of pill that works well for reducing amount over time?
The most common brand seems to be Pro Plus but they cost a bit so I shopped around and found cheaper generic brands on Amazon.
The cheaper brands (apparently intended for sports) come in 200mg pills which I break in half with a knife.
These work fine, but one thing I discovered is that I need to remember to drink water as some of the symptoms of dehydration are similar to caffeine withdrawal.
Also, I always use an L-theanine supplement when I take caffeine, it's amazing how much it changes things. Instead of feeling all jittery and agitated I just feel less tired and more alert. This is roughly the equivalent of just drinking strong green tea.