When you think of detaching (and it is difficult) - it may be best to think more of attaching to your own life. Yes, you are fired as her spouse just now - and so are left to your own devices. I see many people desperately trying to 'detach from him/her' which makes the WAS central in that process and it remains all about them.
However, if you think about re-attaching to your own life, that is more about you and the things you are going to be doing going forwards. New activities, old friends you may reconnect with, places you are going to go, things you will learn, new friends you may make.
Inevitably, if you invest time and energy in doing some new things, she becomes less central in your life. Because you have a life that is separate to her, and that you hopefully enjoy...and who knows, she may want to join in the fun at some future point...
Hope this helps a little :-)
T 13 M 7 Me 48 H 46 SS 15 BD 7.14 PA D final 5.16 (H filed)
We receive & we lose, and must try to achieve gratitude & embrace with whole hearts whatever of life that remains after the losses - Dubus