Work less. '7 days a week up to 16 hours a day'? There's no way you're going to be able to relax working those kind of hours. How could you? Do you think that should be possible?

You need to seriously cut down the amount of time you permit yourself to work (probably taking advantage of parkinson's law - http://en.wikipedia.org/wiki/Parkinsons_Law).

The only thing that's going to allow you to relax is making time to relax.