After my mid 20s, I became incredible sensitive to caffeine. Drinking a single cup wires me for 24+ hours, gives me rather unpleasant anxiety, and causes racing

After my mid 20s, I became incredible sensitive to caffeine. Drinking a single cup wires me for 24+ hours, gives me rather unpleasant anxiety, and causes racing thoughts when I'm trying to sleep at night. Giving it up is a struggle (I love having multiple cups of tea), but I generally sleep a bit better and am less anxious. Not a life changing amount, but enough where it's worth it.