lovemyfamily,
I have gone through the self-put-downs. It is a bad habit and, for me, dates back to childhood. I even did a form of it yesterday and today with my pending new job.
The HR guy called me yesterday. He said I had to complete the online application, now that I have been offered the job. The application includes scheduling a drug test and approving a background check of work, criminal, and credit histories. He also said I need a reference letter from a work colleague since I have been out of work for over a year.
The offer extended to me was the initial one pending the outcomes of the test and checks. I, presently, am like the ballplayers that signed onto a new team and the reports say something like "Joe Blow signed with the XYZ's, pending a physical exam" or "Joe Blow has agreed in principal to the XYZ's offer."
I became very uptight and nervous. The main thing was the reference letter. I could get one, that wasn't the problem. This is the first time when getting hired I had to provide such a document. "They already had the references on my application, so why do they need a formal letter?" I fretted. I have no criminal background so that wasn't an issue but the job history (not the most linear

) and the credit (has gotten a little bad from the past year of being late with loan payments) checks were weighing on me. Deep down I was "awaiting for the other shoe to drop." This is based on my life experiences and in particular of the let-downs of this year's other job attempts. I gradually calmed down and eventually left late in the afternoon to get the drug test done with.
Today, I took a walk to the post office to drop off the remaining papers from the online application that had to be completed by hand. As I prepared to leave my apartment and while during the walk, I felt tense. Why? Same as yesterday: long history of let-downs, current history of job let-downs.
If you have the program, I would recommend doing the breathing exercises. I see they have sections on the forum about self-talk and expectations. Read through those threads and/or do the exercises.
Buy books on self-improvement. Spend a day in Barnes and Noble or other bookstore and check out these books. See which ones deal with your situation. Buy them there or if you want them cheaper--this is what I do

--write down the book name and author and buy them on Amazon.