I'm also job searching, and my first bit of advice is to break the mess of worry into more specific goals and questions. "What sort of jobs would I most like? What jobs are available to me? What are the constraints on my options [location, education, etc.]? What if I were to change this particular variable of my life? What are some common failure modes of people in the same situation?" And so on.

With this, you can seek out answers to much narrower questions, and the answers will not feel so overwhelming.