>>76425028 (OP)I don't get addicted to coffee or nicotine and I'm this close to believing that these substances are not addictive in of themselves. The addictiveness comes from everything that surrounds the substances - there's a lot more to energy drinks and coffee than just caffeine, and there's a lot more to cigarettes than just nicotine. The chemistry is complex as fuck and the behaviours of getting, preparing and taking the drug are also part of addiction.
>If I quit I would get headachesYes you should taper off, but make sure to stay hydrated and add electrolytes. Hydration is key for preventing headaches and cleaning up your body faster.
Try coffee instead but get good quality stuff. All the snobbery around how to make your coffee is overrated reddit nonsense - go for low-tech approaches like pour-over or french press. I like Turkish coffee, which requires a cezve(copper pot) but a steel pot is fine too. I recommend getting whole beans if you don't mind buying another piece of kit. I just use a small electric grinder that grinds that shit to dust in 20 seconds. See the coffee time general on /ck/ if you're curious.