ceepei, I too drank too much caffeine. It was hard to let go of, but I learned to like decaff coffee and to only have the occasional chocolate bar instead of having it every single day. I also now drink caffeine free soda. Like balishbun I too was on a beta blocker for awhile and have been off of it for years now. I no longer have the racing palpitating heart problems when I go to bed. It's been a wonderful thing not to have them anymore!
It may take a week or so to get used to drinking decaff stuff, but in the long run..it's really a godsend. Sometimes just the taste of the coffee is all your body is really wanting....believe me, if it worked for me, it can work for anyone...I was a diehard caffeine addict LOL.
Wishing you well and sending you lots of support!

sabby