I wake up in the morning and crack open a soda or enjoy a nice iced coffee. I've tried to quit caffeine, but I get terrible headaches and I start craving the taste of soda later in the day. It is definitely an addiction, but it's an addiction I'm scared to give an honest effort at stopping since my days productivity depends on the caffeine boost throughout the day. I exercise, eat healthy (usually) and I sleep around seven hours per night, but I still feel exhausted. Any suggestions would be great.