Being an Aggressive aka perpetually stressed Western World Techno Guy, I have trouble with the Art of Relaxation so I've looked and found the tools, the science of relaxation.
I highly recommend users looking to relax into a super O and having trouble doing so to consider the audio, visual and electrical tools, etc. at http://www.toolsforwellness.com as highly helpful aids.
Chemically, Phenibut and Neurobalance, think cheap and legal low powered valium/lorezepam/xanax from http://www.nutraplanet.com is excellent to put a nice and not excess chill on.
I recommend these two sources from having received excellent personal service from both.
Ask me here , or PM me if ya'll want personal recommendations on Tools products. I've tried many of them, some are excellent, some, IMO, a waste of $.