> have you tried quitting coffee? I was drinking a cup a day for years, and going to zero meant being in a depressed unproductive funk for 10 days.

I've found supplementing w/lions mane largely mitigates caffeine withdrawal symptoms. It also takes the edge off when taking high caffeine doses. It's kind of like a caffeine antidote. I used to abstain from it for decades because of these negatives. Now it's a quite useful, legal, and cheap stimulant I'll go on /heavily/ and off at will.