We all go through this everyday .Here are some points that can help you
The first step is to analyze the situation you are in fearlessly and honestly and figure out what is the worst that could possibly happen.
The next step is not easy and requires your will and understanding of your mind. It is to Mentally accept the worst possible outcome.
And if you have come this far , this is it . Now try to improve the worst which you have already accepted. This allows your mind to come with solution and now you just have to start implementing it in your life .
Here is bonus tip that helped me a lot and sure will help you too-
“By Acting That Your Are Feeling Good You Start Feeling Good”