I wish I'd seen this thread earlier, because I had almost this exact same conversation with my T last session. I can never come up with things that I like about myself when he asks me, except that I am kind to animals. He came up with just two things that I agreed with too. I'm caring and I have integrity. I feel like "integrity" is kind of a catch all trait though. Most people have it in some form, right?
Anywho, T says I lack hope and that's what keeps me from seeing my good traits.

I intend to ask T where hope can be found in my next session.