How to keep the peace w/deadlines approaching.

I have a business goal that I want to accomplish this year.  In order to do this, I have to hit this goal by November 19th, which is only 5 weeks away.  I’m not close to this goal yet so I find myself “psyching myself out” about it.  And then on top of that I judge myself for allowing my brain to get to me.  Help!  How can I get my thoughts to serve me here?  Thank you!