This is a great video from Healthy Gamer YouTube channel regarding 6 months caffeine free!
This is a video from a user named Cato regarding what to expect from caffeine withdrawal. His page also has a few other videos on recovery. The comments on each video also show a number of other users who are experiencing similar problems!
This is a video from BeerBiceps YouTube channel about quitting caffeine
Another video from BeerBiceps YouTube channel about the effects of caffeine
A video on changes after quitting caffeine for a week