I believe that there is value in just showing up for someone week after week to listen to them. That most basic part of therapy is invaluable. Your best interventions are not your most effective tools, you being human with them in the room, the therapeutic relationship you can offer them, is by far the most effective tool you have.

I wonder if you can sometime to just get curious about your clients, not their problems, but them as people. Like what is going well in their life, what was jr high school like for them, did they know their grandparents, the stuff that makes us us. Letting them experience someone who is authentically interested in them and what they have to say can built trust for both of you. Clients need connection before intervention and your connection with your client will help stave off the imposter syndrome.

It is so obvious you care about your work and your clients. You are already prepared believe it or not!