Reduce all levels of stress in your life no matter how insignificant it may seem...
Stress is DPs best friend...
You can reintroduce yourself to everyday stress gradually after you start to feel better...
Avoid alcohol and ALL illegal drugs....
Sleep as much as you can...Your mind needs the rest and break from the constant bombardment of fear and obsessive thinking...
If you are particularly bad put your life on hold (if you can) and rest.....Work stresses, relationship stresses, financial stresses etc etc etc are all to be avoided...Because stress causes worry which in turn causes anxiety and hence DP is the end result...
Surround yourself with "understanding" caring people....The pull your socks up, pep talker, its all in your head brigade are to be avoided also...They actually do more harm than good....Ya just end up feeling like a burden on top of everything else...
Be very very very gentle with yourself and take things very easy...Rest, rest and more rest....