As a therapist, my main aim before sleeping is to provide a worry free sleep to other person who has called me today for his/her therapy. Nothing makes us more happier i guess if the client is back to normal and smiling. I have taken freelance counseling also where cases of social phobia, career counseling, relationship issues, anxiety, PTSD i have dealt. While i am in school as a counselorz i have students who suffer from Autismz ADHD and learning disorders. So, its a new learning everyday trust me! You can see new symptoms everyday while your previous theory about disorders taught you something else! As a therapist just be ready to explore more and add onto reasearch. Thats the best you can give to your field and justify it.