How Coffee & Alcohol Addictions Are Linked

Ive consumed alcohol and coffee for most of my adult life. Ive enjoyed both, but have experienced enough negative effects from them that Ive embarked on multiple periods of abstainment. Through those periods, Ive learned that alcohol and coffee addictions are linked together, and if you want to quit one, it helps to first quit the other.

Im able to quit alcohol without much willpower, but coffee is far more challenging. The withdrawal effects are so severe for me that I have to plan to quit...