How could I return to my old life?

I was in a 7 year relationship.. he left me on our wedding for another girl younger it has been 8 months ago

.. i am 30 .. i am a doctor.. I lost passion in life
I could no longer leave my house
I feel safe here
And I feel very afraid when I go out
My attachment to my family and my fear of losing them increased
I want to practice my profession, but I can no longer do it. I am wasting my life !

How could I return to my old life?
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