How to stop being obsessed with manuscripts status
Start on a new paper. 

Fall in love.

See a therapist.

Take up a new hobby or sport. 

Get a dog. 

Talk to your mom/kids.

Re-read Lord of the Rings. 

Design a new course. 

Go for a walk/run/swim/ski. 

Repeat as necessary. 

Not joking here. You are probably just bored. Do something that makes you less bored.