I had applied for a job and I received email confirmation yesterday that I would be receiving a phone call/email telling me the next steps into the interview process. They didn't give me the exact date , it just said within the next few business days.
So I waited for this phone call / email the whole day today but I didn't get today. While I was waiting I was not able to concentrate on anything , I felt nervous and all I could think about was this phone call. Did not get a single thing done today because of this . Just wasted the whole day just waiting.

And I am afraid that tomorrow will also be the same way till I get the phone call. This happens all the time , be it a small thing or big thing. Even for pizza delivery I wait anxiously. I try to distract myself but it doesn't help . Games also I loose because I can't focus. 

Please help me overcome this problem.  I just don't want to live like this.