Drugs, alcohol, and now coffee! I’ve used a variety of substances to self medicate while in a depressed mood. A few years ago I cut out cannabis, and I stay away from using alcohol when I’m down, but I have no limits with coffee. It seems like I can drink as much as I want whenever I want and it doesn’t create the same problems it does when my mood is better.
People who drink lots of coffee often get stomach/intestine problems after many years. Cola also has long term side effects (from sugar or sweeteners). I therefore suggest you look into caffeinated water and/or guarana to mitigate any health problems by not overusing one source of caffeine.