Caffeine struggles

Becky
Is anyone struggling to cut down / cut our caffeine? 
I'm not pregnant yet, AF due 14/08 and on second cycle. First baby. 
Used to drink at least 6 cups of coffee a day, and Pepsi max at night (no trouble sleeping by the way!) and so it's killing me!!!! Been trying to find caffeine free Pepsi Max alternative but don't know if it exists in the UK? Been drinking decaf tea and coffee but can't get it at take outs lol