Here is a self-diagnostic Anxiety, Depression and Stress Test (DAS) that is often administered by psychiatric professionals, and I sometimes use to gain a benchmark for the wellbeing of a client:
Take the test online and print out your results to bring to therapy to discuss. You can do this at different time intervals to monitor how you are feeling.
Online Anxiety, Depression & Stress test:
https://www.depression-anxiety-stress-test.org/take-the-test.html